We send an alert when the warmup activity we observe on a mailbox is lower than expected. If you open the mailbox and see warmup set to a healthy number, the alert isn't contradicting you — it's measuring something different.
Settings vs. actual activity
The number in your warmup settings is a target — the maximum warmup emails per day.
The alert is based on the warmup emails actually sent and received over the recent period.
A brand-new mailbox ramps up gradually, so real activity sits below the target for the first couple of weeks. That's normal and the alert can be ignored during ramp-up.
Common reasons real activity is lower than the target
The mailbox was created recently and is still in its ramp-up period.
Warmup was paused, or the mailbox was disconnected from the warmup tool at some point.
The mailbox's domain finished provisioning only recently, so warmup started later than the other mailboxes in the batch.
Warmup is being run in an external tool whose own schedule is lower than the target set here.
What to do
If the mailbox is less than two weeks old, no action is needed — let it ramp.
If it's older, confirm warmup is still enabled and that the mailbox is still connected in whichever tool runs your warmup.
Don't raise the target to compensate. Pushing volume on a mailbox that isn't warming properly makes placement worse, not better.
If it still doesn't add up
Send us the affected mailbox addresses, the warmup tool you're using, and the daily volume you're sending in campaigns. We'll review your specific case and tell you whether the mailboxes need more time or something is genuinely wrong.