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You can add up to 1024 internal domains.

Procedure

  1. Go to Administration → Mail Settings → Internal Domains.
  2. Click Add.
  3. Type a domain. You can use the * wildcard character as a prefix in the domain.
    For example, example.com, sub.example.com, or *.example.com.
  4. Type additional information for the domain.
  5. (Optional) Specify a note.
  6. (Optional) Click Add more to add more domains.
  7. Click Save.
  8. (Optional) Select Include permitted recipient domains to set the recipient domains you specify on the Limits and Exceptions screen as internal domains.
    For more information, see Configuring Limits and Exceptions.
  9. Click Save.
    After adding a domain:
    • Click Delete to remove the selected entry.
    • Click Export to download all entries as a CSV file.