[BULK] Re: SORBS contact

[bill at herrin.us (William Herrin)]

On Fri, Jul 29, 2011 at 2:46 AM,  <Valdis.Kletnieks at vt.edu> wrote:
> And you might want to fix it, since your users will never get a bounce notice
> from any RFC-compliant mailer - even if they *wanted* to know that their mail
> wasn't delivered. ?<> is the RFC-standard way to denote "this mail is a bounce
> report or other programmatically generated mail, and if it bounces itself, do *not*
> generate another bounce, as that may start a bounce loop".

Correction: It's a standard way to denote that "this mail is a bounce
report." Any other sort of programmatically generated email is
supposed to use an email address capable of receiving a reply so that
the sender becomes aware that it failed to be delivered. One defense
against so-called blowback spam is to refuse bounce reports which do
not, somewhere within the message, contain an email address that the
bounce recipient recently sent to.

Regards,
Bill Herrin


-- 
William D. Herrin ................ herrin at dirtside.com? bill at herrin.us
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