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Re: SPF/FROM-HDR (was: IPR Disclosure for Sender-ID)

2004-08-04 08:17:08

Le mercredi 4 Août 2004 17:03, wayne a écrit :

Whitelisting the To: address is something that SpamAssassin does.  It
allows many emails sent through mail forwarders to be whitelisted.  If
I send email to <user(_at_)forwarder(_dot_)tld>, and it gets passed onto
<user(_at_)isp(_dot_)tld), the email will be coming from an IP address 
associated
with forwarder.tld.  Since user(_at_)isp(_dot_)tld has been involved with the
creation and running of this forwarding relationship, they can easily
whitelist it.

If you whitelist the "To: " corresponding to your address at the forwarder, 
you will whitelist all the spam sent to this address, won't you ?

Unless you rely on the forwarder itself to perform the checks and reject 
failures in the first place...?

It is most probable that the address @your_forwarder is the address that you 
publicly communicate the most as "this is my permanent address", where your 
actual destination address @your_isp may vary when you change ISP, and you 
may want to keep it private. A lot of people proceed this way...

Thus, the address @your_forwarder will be the address that will receive the 
bigest quantity of spam, viruses and forgeries...

Did I miss something ?

-- 
Michel Bouissou <michel(_at_)bouissou(_dot_)net> OpenPGP ID 0xDDE8AC6E


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