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DLP Violation smime.p7s Signature

Hi Guys,

our customer has the following issue with Sophos Central Mail 

Incoming mails are getting blocked due to DLP violations because of the file ending .p7s - which comes with the mail signatures.

If the customer accepts the mail the certificate gets invalid with the information the mail content had been changed.

Sometimes the customer as well gets error messages with outgoing mails due to the message "cannot verify signature".

I already read some community threads about some identical issues - there have been some information about a ongoing bug from sophos:

XGE-17869

XGE-15978

Are there any new information how to solve this problen and allow mails with the attachements ending .p7s?

thanks in advance

Kind regards

Christopher



Added tags
[edited by: Raphael Alganes at 7:46 AM (GMT -7) on 30 May 2023]