Mailscanner changes line-length in base64 encoded email
levnagdimunov0 at hotmail.com
Thu Aug 28 07:32:14 IST 2014
I've noticed that Mailscanner will change the length of
encoded (at least base64 encoded) email on anything greater than 60
characters down to 60 characters in the spool file (-D). For any DKIM signed email, this will break the body hash. Normally it's not a problem since it's already been processed by the MTA at that point, but if you do a blind forward afterward then it is a problem.
MTA: Exim version 4.82 #2
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