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  1. Excel Micro
  2. Proofpoint Essentials™
  3. Proofpoint Essentials™ (PPe)

Masquerade domains and Proofpoint Essentials

Customers who have configured a masquerade domain on a virtual SMTP server may experience problems sending outbound emails through the Proofpoint Essentials platform. Proofpoint Essentials does not support the use of masquerade domains - this is because emails may appear to be sent by mailboxes that are not registered on the platform and will be denied relay access.

Also see:

Can Proofpoint Essentials be used to forward email for non-registered domains?

554 5.7.1: Relay access denied

Sending to Distribution Groups with external domain recipients

 

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  1. Carlos Rios

  2. Posted 2 years ago
  3. Updated 2 years ago

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