invalid sender creates havoc

We recently noticed a message in our postfix queue that thought it was addressed to foo.com. After examining it, it turned out that Qpsmtpd accepted a MAIL FROM command formatted like so: MAIL FROM:u...@d.com,foo.com When it passed it to postfix, it transmographied it first into the sender

Patching require_resolvable_fromhost

Hi All, The require_resolvable_fromhost plugin returns DENYSOFT when a host doesn't resolve. This makes sense with a well behaved host. But I've noticed that some hosts that don't resolve will continuously retry and never seem to disconnect. Sometimes this goes on for days. Is there a good

Re: invalid sender creates havoc

Jared Johnson wrote: We recently noticed a message in our postfix queue that thought it was addressed to foo.com. After examining it, it turned out that Qpsmtpd accepted a MAIL FROM command formatted like so: MAIL FROM:u...@d.com,foo.com When it passed it to postfix, it transmographied it

Re: invalid sender creates havoc

On Jul 29, 2009, at 12:07, Jared Johnson wrote: We recently noticed a message in our postfix queue that thought it was addressed to foo.com. After examining it, it turned out that Qpsmtpd accepted a MAIL FROM command formatted like so: MAIL FROM:u...@d.com,foo.com Weird tha postfix