Official Google Workspace & Microsoft 365 inboxes. We set up everything for you - domains, DNS, inbox creation, sequencer integration, and warmup enabled. Your team in a shared Slack channel with Richard and our infra team. Ready in under 6 hours.
27% of our reviews mention Richard by name. He built this from scratch, he's in your Slack channel, and he personally ensures your infrastructure stays up. Whether you're running 10 inboxes or 500, you get the same level of attention. No other provider gives you this.
Common Questions
The stuff you actually want to know before choosing a provider.
Ready to Get Started?
Join 2,000+ agencies and outbound teams who already chose us.
No setup fees · No annual contract · Cancel anytime · Inboxes live in under 6 hours
★★★★★4.9/5 from 339 reviews onTrustpilot
Works with your sequencer
InstantlySmartleadApolloLemlistReply.ioBison
★★★★★
"Fantastic service, especially for the price. Customer support is fast and they make sure everything is working constantly. Highly recommend if you need inboxes and don't want to do the painful setup yourself."
- Joe, Agency Owner
Direct Sequencer Integration
Unlimited Replacement Inboxes
Guaranteed Setup Time
How It Works
From order to sending in 3 steps.
1
You Order
Choose your inbox count and provider. You bring the domains, we handle everything else.
2
We Build
DNS, SPF/DKIM/DMARC, inbox creation, profile setup. All configured and uploaded to your sequencer.
3
You Send
Inboxes live in under 6 hours. Start warmup, then send. We monitor and replace anything that flags.
Why Getting This Right Matters
Most teams send too many emails from too few inboxes. Here's what that costs you.
Overloaded Inboxes Get Flagged
Sending more than 15 cold emails per inbox per day triggers throttling from Google and Microsoft. Our calculator distributes volume safely across the right number of inboxes and domains.
Official Google & Microsoft Partner
Every inbox is an officially licensed Google Workspace or Microsoft 365 business account. Proper authentication, real business licenses, and dedicated support from an authorized partner.
Ready in Under 6 Hours
Domains authenticated, SPF/DKIM/DMARC configured, inboxes uploaded to your sequencer. You send the order, we handle everything else. Most orders delivered same day.
4.9/5
Trustpilot (339 reviews)
2,000+
Customers
570K+
Inboxes Delivered
<6h
Delivery Time
The Highest-Rated Inbox Provider on Trustpilot
Your Inbox Provider Has a Face
27% of our reviews mention Richard by name. He built Premium Inboxes after watching agencies lose entire campaigns to unreliable infrastructure. Now he's in your Slack channel, personally making sure your inboxes stay up. Whether you're running 10 inboxes or 500 - same attention, same speed.
Common Questions
Everything you need to know about your infrastructure plan.
Your 34 Inboxes Are Ready
Join 2,000+ agencies and outbound teams who already chose us.
Your Cold Outreach Inboxes Keep Dying. Your Pipeline Doesn't Have To.
Stop rebuilding your outbound setup every few weeks. Unlimited inbox replacements. Free. Same day. One burns, a fresh one takes its place. Your campaigns never go dark.
I have been using PI for the last year. Support is great. All my clients are on PI. They have both Google and Microsoft inboxes. Fast, reliable, and the prices keep getting better.
Bharat Devana
USA
★★★★★
Inboxes connect fast
I have been using Premium Inboxes for over a year and have been happy with the service. The inboxes connect fast. No disconnection issues. The price is much better than buying emails direct.
Daniel Linton
Canada
★★★★★
Fixed straight away
Very fast setup, fair pricing and top-class support. Any time something comes up, it is fixed straight away. Would recommend to anyone running email campaigns.
Cormac Lynch
Ireland
★★★★★
Handled our DNS smoothly
We had a great experience with Premium Inboxes. They are the best in their niche and their customer service is top-notch. They handled all our DNS records smoothly and took care of our last-minute requests.
Uzair Rasheed
Pakistan
★★★★★
They helped me actively
Great customer service with a fast response time. They helped me actively, not with templated responses. Easy implementation and short delivery time. Very happy.
AS
Adrian Stupar
Germany
★★★★★
Effective inboxes
Pretty great customer support. Effective inboxes and slick UI. Definitely better than the closest competitors.
Pierluigi Pavan
Italy
★★★★★
Resolved almost instantly
Everything runs smooth. Any question or issue I had got resolved almost instantly. The Premium Inboxes team has been super helpful from the beginning. Highly recommended.
MV
Milos Vranes
USA
★★★★★
Customer care is well structured
Customer care is very well structured. I have been on another platform and this experience is awesome.
Siddik Shaikh
India
★★★★★
Helpful and quick
Richard was very helpful and quick to be of assistance. Clear communication from start to finish.
BS
Brett Stout
USA
★★★★★
The team is goated
The Premium Inboxes team is goated. It always responds fast to inquiries.
Jayson Lee
USA
What we fix
What Premium Inboxes actually solves.
No more stopped pipelines
Stop losing money on burned mailboxes and thin pipelines. We replace them free, so your sending never goes dark.
Official accounts only
Licensed partner. Vetted Google Workspace and Microsoft 365 mailboxes. Fresh reputation from day one.
24/7 real support
Your own Slack channel. We watch your sends day and night. The founders pick up when something breaks.
Unlimited replacements
An inbox gets flagged, we replace it free. Same day. Your campaigns do not stop.
How it works
You pick the inboxes. We do the rest.
01
Pick your provider
Google Workspace, Microsoft 365, or both. Use your domain or one of ours. That is it.
02
We handle everything else
DNS, SPF, DKIM, DMARC, sequencer hookup, warmup. All done before your first email.
03
Your pipeline never stops
An inbox gets flagged, we replace it same day. Your campaigns keep running. Your replies keep coming.
04
Scale without the headache
10 inboxes or 1,000. Same setup. Same support. No hiring. No ops overhead.
How Danny stopped rebuilding inboxes, got a real partner, and signed eight clients in a few weeks.
★★★★★
"Premium Inboxes did not just disappear. Richard and the team jumped in, showed me what was broken, and helped me reset it. They have been a real partner. I genuinely trust them with all things cold email, and I signed eight clients in just a few weeks."
Dannyat EverSales
Build your setup
Pick your inboxes. See your price. Go live today.
Choose how many you need, Google or Microsoft. Standard at $3.50 or Insured at $4.50 an inbox. Your price updates as you drag.
30 inboxes
That is 450 emails a day at 15 per inbox.
102505007501,000
Google Workspace
Microsoft 365
Your Infrastructure Plan
30 inboxes on Google Workspace
30
Inboxes
450
Emails / Day
$105
Per Month
<6h
Setup Time
That's just $3.50/inbox - including domains, DNS, SPF/DKIM/DMARC, and sequencer upload
Most go live the same day, always within 24 hours. You do not stop your campaigns or fix anything yourself. We watch inbox health day and night and swap accounts before they cost you pipeline.
Are these official Google and Microsoft accounts?
Yes. Every inbox runs on official Google Workspace and Microsoft 365, on vetted US and EU domains. No recycled accounts. No sketchy sourcing. No shortcuts. Just a setup built to last.
Do you handle the entire setup process?
Yes. Everything is done for you. We run the free audit, domain setup, SPF, DKIM, DMARC, mailbox setup, warmup, and sequencer hookup. Your inboxes arrive set up, verified, and ready to warm.
How many inboxes do I actually need?
Most teams buy too many and waste money, or too few and hurt deliverability. We size it with you off your daily volume, target accounts, and growth plan. The goal is to scale you safely, not to sell you more inboxes.
How quickly can I start sending?
Most inboxes are live in under 6 hours. Warmup starts right away, and most teams send within a few days depending on volume. We also help you ramp volume safely so your sender reputation holds.
What happens if deliverability drops or something breaks?
This is the whole reason teams use us. When inbox health drops, campaigns slow and meetings dry up. We watch the setup, find the issue, and replace inboxes when needed. You talk to real people who know infra, not a ticket queue.
How is Premium Inboxes different from other providers?
Most providers sell you inboxes and leave. We run the whole outbound back end: official accounts, vetted domains, auth, replacements, deliverability help, and support. You book meetings. We handle the rest behind the scenes.
Can you support agencies and large outbound teams?
Yes. Whether you run outreach for many clients or one big in-house team, the setup scales with you. Teams start with a handful of inboxes and grow into hundreds without hiring extra ops or deliverability people.
The Premium Inboxes API lets your system create client workspaces, place orders, and manage subscriptions. No tickets. No copy-paste. No waiting on a human.
Onboard Clients in Minutes
A new client signs. Your system creates their workspace and places the order on its own. You never touch a form.
Every Client Cleanly Separated
One workspace per client. Inboxes, domains, and orders stay in their own lane. Run it all under your brand.
Know Before Your Client Asks
Your system pulls order status on its own. You always know where every build stands without logging in.
Scale Clients, Not Headcount
Three clients or forty, the workflow stays the same. Your ops team stops being the bottleneck.
Included on every plan. Your API key is already in your portal.
Create Workspaces, Place Orders, Manage Inboxes. All From Your Own Code.
The Premium Inboxes API gives your team full control of client workspaces, orders, subscriptions, and email accounts. It is included on every plan. Your API key is already in your portal settings.
★★★★★4.9/5 on Trustpilot · 2,000+ customers · 250,000+ inboxes
Everything You Do in the Portal, From Your Code
POST /client/workspaces
Create client workspaces
Spin up a separate workspace for every client the moment they sign.
POST /client/purchase
Place orders
Your system fires the order. We build the infrastructure. Google Workspace or Microsoft, same as always.
GET /client/order
Track every order
Pull build status into your own dashboard. No logging in to check.
GET /client/subscription
Manage subscriptions
List, cancel, or reactivate any subscription without raising a ticket.
GET /client/email-account
Manage email accounts
List every account across every client. Cancel the ones you no longer need.
JSON
Feed your own tools
Everything returns clean JSON. Pipe it into your dashboard, your CRM, or your Slack alerts.
Built for How You Actually Work
Agencies
White-label the whole flow. Your client sees your brand, your dashboard, your reports. We stay invisible under the hood. Onboarding a new client becomes one API call instead of an afternoon.
In-house teams
Wire Premium Inboxes into your internal tools. Ordering, tracking, and account checks live where your team already works. No new tab, no new login.
Live in Three Steps
1
Grab your key
It is in your portal under Settings. Every account has one.
2
Create a workspace and place your first order
Two API calls. We handle domains, DNS, and inbox setup like always.
3
Automate the rest
Orders, subscriptions, and email accounts, checked and managed by your system around the clock.
Building with an LLM? Paste this link into ChatGPT or Claude and it gets the full reference: premiuminboxes.com/api-llms
Welcome to the Premium Inboxes Client API. This API lets agencies programmatically manage workspaces, place and cancel orders, and manage email accounts under their account.
Authorization
The Client API uses API key authentication. Every request must include a valid API token.
Token format
Type: opaque API key (random 32-character alphanumeric string)
Example: 4hsi40SXVZkyx8sPJablsXX11eAtTf1c
How to send the token
Include the token in the x-api-token header on every request. No prefix (no Bearer, no Basic):
x-api-token: 4hsi40SXVZkyx8sPJablsXX11eAtTf1c
Scope
One token represents your agency (the top-level Premium Inboxes account).
The token authorizes access to all workspaces owned by that agency.
A specific workspace can be targeted via the optional x-workspace-id header on most endpoints.
Token does not match any agency (revoked or invalid)
401
x-workspace-id references a workspace you do not own
Rate Limiting
Limit
100 requests per minute, counted per x-api-token.
Response when limited
When the limit is exceeded, the API responds with:
HTTP/1.1 429 Too Many Requests
Content-Type: application/json
{
"name": "TooManyRequestsError",
"message": "Rate limit exceeded. Please check the RateLimit-* and Retry-After response headers and retry after the indicated period."
}
Rate limit headers
Every response includes these headers so clients can pace themselves:
Header
Meaning
RateLimit-Limit
Maximum requests allowed in the current window (100)
curl -X PUT "https://api.premiuminboxes.com/api/client/subscription/reactivate/{subscriptionId}" \
-H "x-api-token: YOUR_API_KEY"
Purchase
POST/client/purchase
Create a purchase order (long-running, ~30-45s)
This request typically takes 30-45 seconds to complete.
Parameters
Name
In
Type
Required
Description
x-workspace-id
header
string
No
-
Request Body
{
"emailProvider": "Google",
"hosting": {
"platform": "Cloudflare",
"username": "string",
"password": "string",
"namecheapAccessTutorial": "Yes - I reviewed the tutorial and am submitting the access information in requested format.",
"namecheapBackupCodes": "string",
"goDaddyAccessTutorial": "Yes - I sent DELEGATE ACCESS to [email protected] and entered my GoDaddy Account Name (NOT email) below.",
"goDaddyAccountName": "string",
"porkbunAccessTutorial": "Yes - I disabled all 3 2FAs AND the \"Unrecognized Device 2FA\"."
},
"forwardedDomain": "string",
"domains": "string",
"sequencer": {
"platform": "Smartlead",
"username": "string",
"password": "string",
"bisonUrl": "string",
"bisonWorkspaceName": "string",
"workspaceName": "string",
"enableWarmup": true
},
"numberOfInboxes": 0,
"inboxesPerDomain": 0,
"prefixVariants": [
"string"
],
"emailFirstName": "string",
"emailLastName": "string",
"password": "string",
"profilePictureLink": "string",
"masterInboxEmail": "string",
"additionalInfo": "string",
"coupon": "string",
"personas": [
{
"firstName": "string",
"lastName": "string",
"domain": "string",
"prefixVariants": [
"string"
],
"password": "string",
"profilePictureLink": "string",
"masterInboxEmail": "string",
"forwardedDomain": "string",
"hosting": {
"platform": "Cloudflare",
"username": "string",
"password": "string",
"namecheapAccessTutorial": "Yes - I reviewed the tutorial and am submitting the access information in requested format.",
"namecheapBackupCodes": "string",
"goDaddyAccessTutorial": "Yes - I sent DELEGATE ACCESS to [email protected] and entered my GoDaddy Account Name (NOT email) below.",
"goDaddyAccountName": "string",
"porkbunAccessTutorial": "Yes - I disabled all 3 2FAs AND the \"Unrecognized Device 2FA\"."
},
"sequencer": {
"platform": "Smartlead",
"username": "string",
"password": "string",
"bisonUrl": "string",
"bisonWorkspaceName": "string",
"workspaceName": "string",
"enableWarmup": true
},
"hostingPlatformUrl": "string",
"sequencerPlatformUrl": "string",
"hosting2fa": "string",
"csvSeqTags": "string"
}
],
"manualPersonas": [
{
"firstName": "string",
"lastName": "string",
"domains": [
"string"
],
"prefixVariants": [
"string"
]
}
],
"insured": true,
"flowStartedAt": 0
}
Response 200
"string"
cURL
curl -X POST "https://api.premiuminboxes.com/api/client/purchase" \
-H "x-api-token: YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{"emailProvider":"Google","hosting":{"platform":"Cloudflare","username":"string","password":"string","namecheapAccessTutorial":"Yes - I reviewed the tutorial and am submitting the access information in requested format.","namecheapBackupCodes":"string","goDaddyAccessTutorial":"Yes - I sent DELEGATE ACCESS to [email protected] and entered my GoDaddy Account Name (NOT email) below.","goDaddyAccountName":"string","porkbunAccessTutorial":"Yes - I disabled all 3 2FAs AND the \"Unrecognized Device 2FA\"."},"forwardedDomain":"string","domains":"string","sequencer":{"platform":"Smartlead","username":"string","password":"string","bisonUrl":"string","bisonWorkspaceName":"string","workspaceName":"string","enableWarmup":true},"numberOfInboxes":0,"inboxesPerDomain":0,"prefixVariants":["string"],"emailFirstName":"string","emailLastName":"string","password":"string","profilePictureLink":"string","masterInboxEmail":"string","additionalInfo":"string","coupon":"string","personas":[{"firstName":"string","lastName":"string","domain":"string","prefixVariants":["string"],"password":"string","profilePictureLink":"string","masterInboxEmail":"string","forwardedDomain":"string","hosting":{"platform":"Cloudflare","username":"string","password":"string","namecheapAccessTutorial":"Yes - I reviewed the tutorial and am submitting the access information in requested format.","namecheapBackupCodes":"string","goDaddyAccessTutorial":"Yes - I sent DELEGATE ACCESS to [email protected] and entered my GoDaddy Account Name (NOT email) below.","goDaddyAccountName":"string","porkbunAccessTutorial":"Yes - I disabled all 3 2FAs AND the \"Unrecognized Device 2FA\"."},"sequencer":{"platform":"Smartlead","username":"string","password":"string","bisonUrl":"string","bisonWorkspaceName":"string","workspaceName":"string","enableWarmup":true},"hostingPlatformUrl":"string","sequencerPlatformUrl":"string","hosting2fa":"string","csvSeqTags":"string"}],"manualPersonas":[{"firstName":"string","lastName":"string","domains":["string"],"prefixVariants":["string"]}],"insured":true,"flowStartedAt":0}'
I’ve tried a bunch of email account providers and domains, and here’s what I found: quality is everything when it comes to the stack you’re using for cold email.
You can land your first lead in 12 hours, as the email accounts are set up in 12 hours or less.
And you don’t need to worry about the technical stuff. From SPF and DKIM to DMARC and MX records, Premium Inboxes handles it all so you can focus on what matters—sending emails and closing deals.
I’ve found you can’t generate leads if your emails aren’t landing in the primary inbox.
And you can’t scale your outreach if your inbox provider takes 24+ hours to reply—or worse, ghosts you after you’ve made the payment.
Here’s the full tutorial for setting up your accounts:
Sign Up: Head to Premium Inboxes and pick the plan that fits your outreach goals.
Set Up a Domain: Use a dedicated domain for cold email (not your main one) to protect your reputation. Premium Inboxes will configure everything for you.
Sequencer: Mark the cold email-sending platform (sequencer) you’re using. Everything will be set up there so can start sending in 12h or less. Speed is everything in lead gen.
Warm It Up: Start warming up your inbox right away for better deliverability. Premium Inboxes integrates with all major warm-up tools or provides guidance to make it easy.
And just like that, you’re ready to launch high-performing cold email campaigns!
Creating your ideal lead list
Building a solid prospect list starts with clearly defining your ideal client. Think about the companies that would benefit most from what you’re offering. Think about those you already work with.
What’s their size? Which industries are they in? Where are they located? Most importantly, who makes the decisions in these businesses?
Answer those questions, and use it to build your list with these tools:
Apollo — My favorite database - it’s easy to use and massive (with affordable options for lead generation). Not ideal for finding phone numbers, though, if you’re interested in that.
ZoomInfo — Excellent for comprehensive company and contact details, especially for enterprise-level prospects.
LinkedIn Sales Navigator — Ideal for highly specific searches, like job titles, industries, and recent activity. Not ideal for finding email accounts - and you need your leads’ emails for cold email.
Clay — A great choice for advanced list-building workflows and custom targeting.
PhantomBuster — Automates lead collection from LinkedIn and other platforms.
A well-curated list is not just about finding prospects who fit your criteria. It’s the foundation for personalized outreach that grabs attention and resonates with your audience.
Filters I Apply in Apollo:
Location: Target prospects in specific regions or cities that align with your business.
Industry: Focus on niches where your product or service offers the most value.
Company Size: Filter by employee count or revenue for better alignment.
Verified Email: Check this box to ensure you get only leads with email accounts.
Technologies: Companies using a specific tool, e.g. HubSpot, YouTube, Shopify, or Xero.
Role/Title: Target decision-makers for your offer, such as owners, founders, CMOs, or CFOs.
List Cleaning:
NB! Always clean your lead list. That means verifying that the emails in your list are actually still in use and active.
Sending emails to expired emails (or not to a cleaned list) can severely hurt your domain and email account health. That means you’ll need to keep getting new domains and email accounts.
A high bounce rate is an indicator of something being off with your list.
So, never skip the step of cleaning your list. You can use these tools for it:
Personally, I’ve found tools like Apollo and Sales Navigator to be game-changers. They make it easy to narrow down high-quality leads that are ready for outreach.
The more precise you are with your targeting, the better your results will be. A strong lead list is the foundation of every successful cold email campaign.
How to write a converting email copy
Writing cold email copy that actually converts is both an art and a science. The goal? Get straight to the point, capture attention, and leave them wanting to know more.
Over the years, I’ve tested countless approaches, and these are the ones that consistently drive results.
Key Elements of a High-Converting Email
Subject Line That Grabs Attention:
Your subject line is the first thing your prospect sees—make it count! Use curiosity, personalization, or value-driven language to stand out in a crowded inbox.
Examples:
"Quick question about [their company]"
"Struggling with [specific pain point]?"
"How [successful company] solved [problem]"
A Hook That Pulls Them In:
Start with something that shows you’ve done your homework. Mention something about their company, role, or recent activity.
Example:
"I noticed you recently expanded into [industry] - congrats! That’s no small feat."
Address Their Pain Point:
The fastest way to their attention is to show you understand their struggles. Highlight the problem they’re likely facing and how you can help.
Example:
"Getting emails into the primary inbox is tough—our clients have seen a 90% boost in deliverability after fixing their setup."
The No-Brainer Offer:
Your email should make it ridiculously easy for them to say yes. Whether it’s offering a case study, a quick chat, or a free audit, keep it simple and compelling.
Example:
"Would it make sense to send over a case study showing how we helped [similar company] achieve [result]?"
Short & Simple Call to Action:
Don’t ask for too much. Keep it short, actionable, and easy to reply to.
Examples:
"Interested? Just reply 'yes,' and I’ll send more details."
"Does next Thursday at 10 AM work for a quick call?"
Common Mistakes to Avoid
Writing a novel: Nobody has time for a wall of text - keep it concise.
Being too generic: Always personalize your emails to stand out.
Overcomplicating the ask: Your CTA should be crystal clear.
Pro Tip: Add Personality
Your emails don’t have to be boring. A touch of humor, a well-placed emoji, or a conversational tone can go a long way in making your outreach memorable.
Example:
"P.S. I know this email is cold, but my coffee’s hot - let’s chat over a virtual cup. ☕"
Great email copy doesn’t just get replies - it starts conversations that lead to conversions. Test these strategies, tweak them for your audience, and watch your campaigns take off.
The only follow-up strategy you’ll ever need
Did you know that 80% of sales require at least five follow-ups? Most people give up after the first or second email, but that’s where you can stand out and win. A good follow-up isn’t just a reminder—it’s a chance to re-engage, add value, and show you’re serious about helping your prospect.
Why Follow-Ups Matter
People are busy. Your initial email might get buried, or they might mean to reply but forget. Following up ensures your offer stays on their radar and gives them another opportunity to engage.
The Follow-Up Framework
Here’s a proven formula for effective follow-ups:
Email 2: Light Reminder + Value Add
Subject Line: "Quick follow-up—[value point]"
Keep it short. Reference your first email, and add something valuable, like a case study or a quick tip.
Example:
"Hi [Name], just following up on my last email. I wanted to share a quick example of how we helped [similar company] improve [result]. Let me know if you'd like to see the details!"
Email 3: Ask for Feedback
Subject Line: "Did I miss the mark?"
Show you’re open to feedback. Ask if your timing or offer is off.
Example:
"Hey [Name], I wanted to make sure my last email wasn’t off-target. If this isn’t relevant for you, just let me know—I’d be happy to adjust or point you to someone else who can help!"
Email 4: Create Urgency or Scarcity
Subject Line: "Final slots this week"
Add a reason to act now. It could be limited availability, a special offer, or a deadline.
Example:
"Hi [Name], I have just a few slots open this week for quick calls. If you’re interested in learning how we can help [specific benefit], let me know!"
Email 5: The Break-Up Email
Subject Line: "Should I close your file?"
Give them an easy out but leave the door open for the future.
Example:
"Hi [Name], I haven’t heard back, so I’ll assume this isn’t the right time. If things change, feel free to reach out—I’d love to reconnect!"
Pro Tips for Better Follow-Ups
Keep It Conversational: Avoid sounding pushy or robotic. Use a friendly tone that encourages engagement.
Vary the Timing: Space your follow-ups a few days apart to avoid being annoying.
Add Value Each Time: Share something new—a resource, insight, or quick win they can use.
Follow-Up Scripts That Work
Here are a few quick examples you can use right away:
Re-Engagement: "Hi [Name], just bumping this to the top of your inbox—thought it might be helpful!"
Value Add: "Hi [Name], I came across this [article/resource] and thought it might be relevant to your work at [Company]."
Humor: "Hi [Name], maybe your inbox ate my last email? Happens to the best of us!"
Follow-ups are where deals are won or lost. Stay consistent, add value, and watch as your persistence pays off.
Cold Email Automation Rules
When it comes to cold email, automation can be a game-changer. It saves time, scales your campaigns, and keeps you consistent. But if you don’t follow the rules, it can quickly backfire.
Spam filters are smarter than ever, and one misstep can hurt your deliverability or even get your domain blacklisted. And that’s not good, my friend.
The good news? By following these outreach automation rules, you can stay on the right side of email providers while maximizing your results.
Key Rules for Safe Outreach Automation
Start Small, Then Scale Up
Never send 500 emails on day one from a single account. Instead, start small—10-20 emails per day per inbox—and gradually increase your sending volume over a few weeks.
This “warm-up” period builds trust with email providers and reduces the chances of your emails landing in spam.
👉 With Premium Inboxes, your accounts come pre-configured with the right base cap volume to keep your campaigns safe. This means you can scale your outreach without worrying about deliverability issues.
Personalize Every Email
Even if you’re automating, make sure your emails feel personal. Use placeholders like [First Name], [Company], or [Pain Point] to show prospects you’ve done your homework.
Follow the 1-10-100 Rule
Inbox: Don’t send more than 10-20 emails per day per account.
Domains: Use multiple domains to distribute your email volume safely.
Inboxes Per Domain: Use only 2-3 email accounts per each domain.
For example, if you’re using 10 domains, you can set up 30 email accounts, and send 300-600 emails per day altogether.
Premium Inboxes makes it easy to manage multiple domains and accounts, and they’ll even notify you if a domain’s health isn’t optimal anymore, so you can switch it out for better results.
Monitor Your Email Reputation
A dip in reputation is a red flag. If you start seeing a high bounce rate—it’s time to review your sending practices or switch out your domain.
🚀 Bonus: Premium Inboxes offers unlimited email refreshers. If your accounts need to be replaced for better deliverability, they’ll set you up with fresh ones, ensuring your campaigns never skip a beat.
Respect the Unsubscribe Rule
Always include an easy way for prospects to opt out. It’s not just about compliance—it keeps your list healthy and engaged.
Use Automation Tools Wisely
Platforms like Instantly, Smartlead, and Saleshandy are great for managing your campaigns, but they’re only as good as the rules you set. Keep sending volumes realistic, ensure you’re rotating accounts, and prioritize personalization.
Pro Tips for Smooth Automation
Spread Out Your Sending Times: Avoid sending emails all at once. Set your automation tool to send emails at random intervals throughout the day.
Segment Your Lists: Target smaller, focused groups of prospects to keep your campaigns relevant.
Always Warm Up: Make sure new inboxes are properly warmed up before diving into outreach. Tools like Mailwarm or Lemwarm are great for this.
Automation is powerful, but only if it’s done the right way. By setting the right rules, monitoring your accounts, and partnering with a reliable provider like Premium Inboxes, you can scale your outreach safely and effectively.
How to Avoid Looking Like a Spammer
Cold email works but only if your emails actually land in the inbox. If you’re constantly hitting spam folders, your domain reputation tanks, and your emails become invisible.
Here’s how to avoid that and ensure your emails are seen:
1. Get Your Technical Setup Right
Email providers look for authentication records to verify whether an email is legit. Without these, your emails are more likely to be flagged.
✔️ SPF, DKIM & DMARC: These must be properly configured on your domain. (Premium Inboxes handles this for you.)
✔️ Use a Dedicated Domain: Never send cold emails from your primary domain. (Again, Premium Inboxes provides this!)
✔️ Warm Up Your Inbox: Slowly increase sending volume over time to build a good reputation.
2. Keep Your Sending Behavior Safe
Even if your setup is perfect, your sending habits can still trigger spam filters.
🚫 Never send too many emails too fast – Start small (10-20/day) and gradually increase.
🚫 Don’t send the same email to thousands of people – Slight variations help avoid spam triggers.
🚫 Always personalize – Generic, mass emails are a red flag.
3. Avoid Spammy Words & Formatting
Spam filters flag emails that look overly promotional or aggressive.
❌ Avoid words like:
“Free,” “Guaranteed,” “Cash,” “Act Now”
Excessive ALL CAPS or !!!
Too many links or images
✅ Instead, focus on conversational copy. Keep it short, direct, and natural.
4. Monitor & Adjust
Track your deliverability. If open rates drop below 40%, something’s wrong.
📊 Check your domain health using Google Postmaster.
🔄 Rotate inboxes & domains if one starts underperforming (Premium Inboxes helps here).
📬 Use email verification tools to clean your list before sending.
5. Use Premium Inboxes for Better Deliverability
✔️ Pre-configured inboxes with the right settings
✔️ Unlimited email refreshers (they replace accounts when needed)
✔️ Alerts when your domains need to be switched
This way, you never have to worry about your emails landing in spam again.
How to Re-Engage Cold Leads
Some leads won’t reply to your first few emails. That doesn’t mean they’re a lost cause. Re-engagement emails can bring old prospects back to life.
Here’s how to do it without sounding desperate.
1. Check Why They Went Cold
Before following up, ask yourself:
✅ Did they open but not reply? (They might be interested but need a better hook.)
✅ Did they never open? (Maybe your subject line needs work.)
✅ Did they respond but ghost after? (They might need a reason to continue the convo.)
Use this info to adjust your follow-up approach.
2. Send a “Did I Get This Wrong?” Email
If they haven’t responded in a while, make it easy for them to opt out—or re-engage.
📧 Subject: "Should I close this out?"
"Hey [First Name], I haven’t heard back, so I’ll assume this isn’t a priority right now. If I got that wrong, let me know—I’d be happy to send over [value offer]."
This works because it removes pressure and puts the ball in their court.
3. Offer Something New
Instead of repeating your old pitch, give them a new reason to engage.
💡 Send a case study related to their industry.
💡 Share a new strategy or trend they might find valuable.
💡 Ask a simple yes/no question (e.g., “Would this be relevant for you right now?”).
4. Switch Up the Channel
If they’re not replying to email, try LinkedIn or even a voicemail. Sometimes a different format gets better results.
🔄 Pro Tip: If a lead is cold for 60+ days, move them to a re-engagement list and reach out later with fresh messaging.
How to Find Anyone’s Email Address
No email = No outreach. If you don’t have the right contact info, you’re wasting time.
Here’s how to find and verify anyone’s email address:
1. Use Lead Databases
The easiest way to find emails is through databases that collect verified contact info.
🛠 Best Tools for Finding Emails:
Apollo.io – Affordable, massive database
ZoomInfo – Expensive but great for enterprise contacts
Hunter.io – Free tool for checking company emails
2. Use LinkedIn + Email Guessing
If a lead’s email isn’t public, you can guess it using common email formats.
🔹 First Name + Last Name @ company domain
🔹 First Initial + Last Name @ company domain
🔹 First Name @ company domain
Example: If the company uses @acme.com, and the CEO is John Doe, his email is likely: