warmup
3 posts
warmupdeliverability8 min read
How email warmup works: ramp, pools and limits
See how email warmup ramps from 10 to 40 messages a day, selects healthy pool partners, verifies placement and protects mailbox reputation.
warmupdeliverability7 min read
How to recover a burned cold email mailbox
A step-by-step recovery plan for a quarantined or blocklisted mailbox: confirm listings, fix the root cause and re-warm at 5 to 10 emails a day.
warmuppolicy7 min read
Quarantine early: how we protect shared warmup pools
Most warmup tools pull a mailbox at 80% spam placement. SenditCold quarantines at 20%, on separate signals with sample floors, and re-entry you have to earn.
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