Mailbox troubleshooting

A mailbox is not sending, shows an error, or was auto-paused.

Updated Sep 10, 2026 1 min read

Problem

A mailbox shows Error or Paused, or a campaign is skipping it.

Possible causes

  • The mailbox requires setup or attention
  • Bounce-rate or complaint-rate protection paused the mailbox
  • The daily or hourly limit is already used up for the period
  • Warmup auto-paused the mailbox on poor health

How to check

  1. Email Accounts → open the mailbox and read its timeline; the reason is recorded there.
  2. Open the mailbox details and read the setup or error action shown.
  3. Check the mailbox's Sent today against its Limit.
  4. Open Warmup and look at the row's status badge.

How to fix

  • Complete the mailbox action shown, then re-check its status.
  • If protection paused the mailbox, clean the list before resuming; resuming into the same list repeats the problem.
  • If limits are simply exhausted, nothing is broken. Add mailboxes for more capacity.

When to contact support

The mailbox shows Error with no setup action, healthy bounce rates and no protection block recorded on its timeline.

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