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Vectel
Support/Security

Attachments delay mail delivery due to Safe Attachments scan

Dynamic delivery sends the body immediately, attachment follows after scan. No wait for users, scan still runs.

Try this first

  1. 1Defender > Policies > Safe Attachments
  2. 2Action: Dynamic Delivery
  3. 3Redirect blocked attachments to security-team mailbox
  4. 4Test with EICAR attachment or safe sample

When to bring us in

Workflows automating attachments, dynamic delivery sometimes breaks.

See also

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