Is there a spam check for x-enevelope-to != rcpt-to field

[Julian Field]

I assume you mean the
    X-Envelope-To
header and the
    To
header. There is no requirement for these to be the same, as any mailing 
list posting will show you. You cannot use the difference to detect 
spam, as you would fire a false alarm on every mailing list posting.

Peter Katzmann wrote:
> Hello,
> plenty of spam has always a discrepancy between the  x-enevelope-to 
> field and the rcpt-to field.
> Sometimes its like a small typo for example joe.smith!= joesmith 
> sometimes its totally different like johnford!=joesmith.
>
> So i looked for a long time if there is some filter but didn't find one.
> Propably someone on the list here has a hint for me ?
>
> Thanks for any pointer
>
> peter
>
>
> _______________________________________________________
> Registergericht / Court of jurisdiction: Amtsgericht Gießen HRB 5708
> Geschäftsführer / Managing Director: Edith Thiesen, Jürgen Thiesen
> USt.-Id: DE 175 623 789
> Ust.-Nr: 018 246 00743 FA Fulda
>
> Hauptsitz / Headquarters:
> Thiesen Hardware & Software Design GmbH / Im Tiegel 9 / 36367 
> Wartenberg / Germany
>

Jules

-- 
Julian Field MEng CITP CEng
www.MailScanner.info
Buy the MailScanner book at www.MailScanner.info/store

Need help customising MailScanner?
Contact me!
Need help fixing or optimising your systems?
Contact me!
Need help getting you started solving new requirements from your boss?
Contact me!

PGP footprint: EE81 D763 3DB0 0BFD E1DC 7222 11F6 5947 1415 B654


-- 
This message has been scanned for viruses and
dangerous content by MailScanner, and is
believed to be clean.