Welcome to The Hero 🗞️. This is approximately a 3-minute read.
😵 Sending cold emails from your main domain can blacklist your entire company (recruiting, sales, support - everything goes to spam)
😡 One bad campaign destroys deliverability across your organization, and recovery takes 3-6 months
💡 The 5-step playbook to scale outbound without getting blacklisted
TL;DR
Sending cold recruiting emails from your main domain will get your entire company blacklisted
One bad campaign can destroy deliverability for your entire company - recruiting, sales, support, everything
Buy 3 domains, warm them up + authenticate everything
🚨 The Problem Nobody Talks About
You're sending cold outreach from yourcompany.com.
And it's working!
At least for now…
Then something changes.
Response rates crater.
Candidates start to ghost you and then your hiring managers ask why nobody's replying.
You check.
Gmail flagged you.
And Outlook did too.
Your domain is cooked 😭
And it's not just recruiting.
Sales emails? Spam.
Customer support? Spam.
EVERYTHING… spam 🪦
One bad campaign destroys deliverability across your entire company.
Recovery takes 3-6 months - and in some cases, your only option is buying a new domain and starting over.
The full breakdown is just below - don’t miss it! 😉
Links of the Day:
🔗 Best Links
Here are some of the best links I’ve found since last time I emailed you:
👨💼 Job Description, Job Posting & Onboarding Templates
How to Write a Winning Job Offer Letter (link)
The Essential Employee Onboarding Checklist (link)
🔎 Find Candidates
The Ultimate Guide to Candidate Sourcing (link)
21 Creative Sourcing Strategies to Find and Attract Top Talent (2026) (link)
🤖 AI Recruiting Tool
Recruiting Automation: What It Is and How to Use It (link)
AI Resume Screening: Pros & Cons (link)
🚀 Onboarding
Employee onboarding toolkit (link)
New employee onboarding process: How to get it right (link)
🧠 Why This Happens
Email providers track your sending behavior.
Send too many cold emails too fast, rack up too many bounces, or get enough "mark as spam" clicks, and they act.
No warning.
They throttle you…
Then block you.
By the time you notice, the damage is already done.
The fix isn't just sending less.
It's sending smarter.
📕 The Bulletproofed Playbook
1. Buy 3+ secondary domains
If you're acme.com, grab domains like: acme-talent.com or joinacme.com.
Keep them close to your brand and redirect them to your main site for legitimacy.
If you use a platform like porkbun, you can buy domains for $5-10 per year.
2. Create 3 mailboxes per domain
Set up firstname@, firstname.lastname@, and initials@.
That's 9-12 inboxes total.
Rotate mailboxes every 30 days AND stay under 30 emails per inbox per day (best practice).
3. Authenticate everything
SPF, DKIM, DMARC.
This is your TSA pre-check for sending emails - it proves you're legit.
Sounds technical. It's not.
MxToolbox has free setup guides - configuration takes 20 minutes.
Skip this, and you're sending from an unverified address that providers will flag fast.
4. Warm up your inboxes
New inboxes have no reputation.
Send too much too fast and you're flagged immediately.
Week 1: 5-10 emails/day
Week 2: Ramp to 10-20/day
5. Never send cold outreach from your main domain.
Your main domain is for candidates replying, clients emailing, and important communications.
Protect it.
All outbound goes through secondary domains.
P.S. Want the complete guide?
👉 Refer 5 friends to the Hero and get the free 100x Recruiter Stack with step-by-step instructions (see below)
To Sum It Up…
Good outbound runs on a clean infrastructure.
Bad domains mean no replies, which means no hires.
And To Wrap It Up…
This isn't optional...
If you're scaling cold outreach without proper setup, you're one bad campaign away from destroying your company's email deliverability 😵
HOW WE CAN HELP?
There are a few ways:
Or you can just reply to this email.
I reply to absolutely everyone who writes me back 🙂
