Warm your existing domain and inboxes
Even if you’re already sending cold emails, warming your inboxes helps pad deliverability.
What to do:
Add your current inboxes to a warming tool like Smartlead
Set volume to ~10 emails/day
Set reply rate to 95–100% (most warmers simulate replies for this)
Campaign sending limits:
Keep total outbound volume to ~50 emails/day
→ That’s about 17 new people enrolled per dayThis helps maintain a safe domain reputation while warming in the background
Warm a new domain (not a subdomain)
New domains should be warmed gradually before full use.
What to do:
Register a new domain
Add it to Smartlead or a similar warmer with ramp-up enabled
Start with 20–50 total sends/day per inbox
Aim for a 20–40% reply rate in the first week
After one week, increase warm-up volume to 40–50/day
⚠️ Use a completely new domain, not just a subdomain of your main one
Rotate inboxes and swap behavior
To keep your domain healthy long-term:
Rotate the inboxes being used in live campaigns
Rotate the warmers too, don’t keep the same pattern forever
Do a full swap every 2–3 months
✅ Pro tip: forward replies from new inboxes to your main inbox to avoid split conversations
Additional tip: Organize your inbox
Smartlead lets you customize keywords in warm-up emails. You can create filters or folders in Gmail or Outlook to catch these messages and keep them out of your primary inbox view.
What this helps with
Maintains high deliverability as you scale
Avoids spam traps and IP flags
Keeps reply rates strong without manual effort
Lets you scale multiple inboxes without splitting your workflow