On Thu, 2022-09-15 at 14:49 +0200, Jaroslaw Rafa via evolution-list
wrote:
> Dnia 15.09.2022 o godz. 12:22:13 Pete Biggs pisze:
> > 
> > The mail must be using different SMTP servers. It's unlikely that an
> > SMTP server would treat mail differently from different clients.
> 
> Unless the client on the phone encodes the forwarded mail in some way that
> causes the SMTP server not detect the fraudulent mail.

I would hope any decent SMTP server would be aware of this sort of
thing. Certainly all the ones I know can mime-decode and base64-decode
message bodies to get at the content.  If it were that easy to by-pass
the scanners the spammers would do nothing but send encoded mails. 

The only thing my scanners can't decode are password encrypted files -
on some it passes them with a warning, on others it rejects any
passworded content.

P.

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