Short answer
Use healthy mailboxes, warm them up, and start slow.
Recommended
- Use dedicated outreach mailboxes rather than your team's everyday inboxes.
- Confirm every mailbox is Active and has no health warning before assigning it.
- Spread volume across mailboxes, rather than pushing one mailbox hard.
- Leave warmup on and give it at least two weeks before real volume.
- Keep each mailbox's campaign volume modest. Scale by adding mailboxes.
- Verify your list before importing. Bounces damage sending reputation quickly.
- Set a realistic sending window in your prospects' timezone with pacing delays between messages.
Important notes
None of this guarantees inbox placement — no platform can. It removes the causes that are inside your control.
Was this article helpful?