Sending limits control how much activity a mailbox can generate. A provider's technical maximum is not a recommended campaign volume.
sending.ac mailbox settings
After warm-up, the recommended outreach setting is 2 campaign emails per mailbox per day. The available outreach settings are 2, 3 and 4; 4 is the maximum, not the recommended starting point.
The current combined limit is 12 emails per mailbox per day, including warm-up and outreach. For example, 2 outreach emails leave up to 10 for warm-up. Do not treat each activity as a separate allowance.
Keep the configured settings
Follow the values in your sending.ac dashboard. Generic sequencer advice such as sending 30 or 50 campaign emails from each mailbox does not apply to this setup.
Allow at least 3 weeks of warm-up before campaigns. Scale with appropriate mailbox capacity rather than by pushing each mailbox above its limits. Ask support before changing the configuration or if the dashboard shows a value you do not understand.
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