[Mimedefang] Detecting S/MIME messages and changing processing

[Paul Murphy]

> 
> Extra header lines *shouldn't* be a problem - after all that 
> happens when
> the mail goes through any mail server.  Certainly I've received a fair
> amount of PGP signed email, processed through MD and SA, 
> without issue.
> 
> I'd expect that you've got something that's modifying the body of the
> message.  Maybe one of the HTML cleaners?

I've modified the certificate trust level at both ends of the link, and all now
seems to be well - very odd.  What happened was that the message was originally
signed, rather than encrypted, and one of our mail filtering systems is
appending a disclaimer which then breaks the signature. 

The question of blocking unencrypted mail to some domains remains unanswered -
has no-one ever tried this?

Best Wishes,

Paul.
__________________________________________________
Paul Murphy
Head of Informatics
Ionix Pharmaceuticals Ltd
418 Science Park, Cambridge, CB4 0PA

Tel. 01223 433741
Fax. 01223 433788


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