> Thanks a lot to you all. Disabling the command
> fixed it. I didn't know about that proxying
> feature of the firewall.
>
> I have to check wether it's worth or not leaving
> it enabled. I read in the smtp paper of DJB that
> some smtpd may not send mail to a host refusing
> the VRFY command. Though, I would rather leave
> the firewall do the proxy.
> Any advice ?
>
Have a look at
http://www.ornl.gov/its/archives/mailing-lists/qmail/2001/03/msg01203.html
about problems having fixup protocol smtp 25 on the PIX enabled.
J.
