PureMessage for Unix now detects "OpenPGP/GPG" emails as encrypted. This is a new behavior in version 3.72.1 of the Sophos Engine giving customers more flexibility in their rules for handling these messages. Because of this you many notice PGP emails are being detected and blocked by your policy.
The following checks can detect the OpenPGP/GPG
If this is not the behavior you are looking for then you will need to create a "cantscan" check and handle the message. This article describes the steps for creating a "cantscan" rule on PureMessage for Unix
The following sections are covered:
Applies to the following Sophos products and versions PureMessage for Unix
The following is example policy.siv code to allow un-scannable files for the pmx_suspect_attachment.
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