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Suppressed contacts are people Retainful will not email, even if they appear in your audience for a campaign. Suppression is automatic and protects your sender reputation.

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Why contacts get suppressed

Sending to these addresses again would hurt your deliverability for everyone — mailbox providers like Gmail watch how often your emails bounce or get flagged, and punish senders who keep trying.

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View suppressed contacts

Go to Audience → Suppressed contacts to see who is suppressed and why, along with summary stats.

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Removing a suppression

If a contact was suppressed by mistake — say, their mailbox was temporarily full and caused a bounce, or they unsubscribed accidentally and asked to come back — you can remove them from the suppressed list using the bulk Remove from suppressed action.
Only un-suppress a contact when they have explicitly asked to receive your emails again. Un-suppressing spam complainers is never a good idea — if they complain twice, mailbox providers take it very seriously.

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Suppression vs. unsubscribed status

They overlap but aren’t identical: unsubscribing changes the contact’s subscription status (their choice), while suppression is Retainful’s safety net that also covers bounces and complaints. Either one is enough to stop marketing email to that address.

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Keeping your list healthy

  • Use double opt-in for signup forms to keep fake addresses out.
  • Don’t email very old lists without a re-permission pass — dormant addresses turn into spam traps.
  • Watch your bounce rate in campaign analytics; a spike usually means a stale audience.
  • See Deliverability best practices for the full picture.