> Suppression list: A list of addresses an email service won't send to, usually because they bounced or complained.

Source: https://vaartix.com/glossary/suppression-list

[Email glossary](https://vaartix.com/glossary)

# Suppression list

Also called: Do-not-send list

A list of addresses an email service won't send to, usually because they bounced or complained.

## How this affects you

Vaartix checks its suppression lists before every send. A suppressed recipient is skipped, and the email's timeline shows a `suppressed` event with the reason; other recipients of the same email are sent normally. Hard bounces are suppressed for every customer, complaints for your team only.

## Learn more

-   [Suppression](https://vaartix.com/docs/concepts/suppression/)

Related: [Bounce (hard and soft)](https://vaartix.com/glossary/bounce) · [Complaint](https://vaartix.com/glossary/complaint)

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