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Prevent MYOB Acumatica emails being marked as spam

Sometimes, MYOB Acumatica emailing can fail because a spam management engine blocks MYOB Acumatica's IP address, mistaking it as a source of spam.

To fix the issue, you can add MYOB Acumatica as a safe sender to your Office365 allow list. There are multiple ways of doing this. For details, see Microsoft's documentation on creating sender allow lists for cloud mailboxes.

We recommend using restrictive mail flow rules when adding a safe sender

The senders you add to your allow list can bypass many security measures. Regularly review your allow list to make sure you know who is permitted to bypass those security measures. From most recommended to least recommended, here are the different methods:

  1. Exchange mail flow rules

  2. Outlook Safe Senders

  3. Anti-spam policy: IP Allow Lists

  4. Anti-spam policy: Sender/Domain Allow Lists