Hi All,
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 may notice PGP emails are being detected and blocked by your policy.
The following checks can detect the OpenPGP/GPG
- 'pmx_suspect_attachment'
- 'pmx_attachment_name'
- 'pmx_attachment_true_filetype'
- 'pmx_attachment_type'
- 'pmx_credit_card'
- 'pmx_phrase'
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.
Please refer to the article PureMessage for Unix now detects "OpenPGP/GPG" for more information
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