This is a discussion on RE: Weird slowness within the mailing.postfix.users forums, part of the Mail Servers and Related category; Bingo. I forgot about how the PIX screws with things. Shame on them. Adam > -----Original Message----- > From: Nicolas ...
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Bingo.
I forgot about how the PIX screws with things. Shame on them. Adam > -----Original Message----- > From: Nicolas Riendeau [mailto:knightr@istop.com]=20 > Sent: Friday, 24 September 2004 10:14 AM > To: Adam Clark > Subject: Re: Weird slowness >=20 > Hi! >=20 > Adam Clark wrote: > > Which is fairly speedy and looks fine > >=20 > > If I telnet from outside of our DMZ I get: > > 220 *********************************** > > quit > > 502 Error: command not implemented > >=20 > > There is a delay of about a second or so. > >=20 > > Any ideas? >=20 > You have a Cisco Pix firewall with SMTP protocol fixup enabled... >=20 > With that enabled, the Pix acts as some sort of proxy and=20 > this causes a lot of problem for many MTAs including Postfix... >=20 > I would suggest that you either disable it (smtp protocol=20 > fixup) or ask that it be disabled as Postfix is secure enough=20 > out of the box not to require this... >=20 > Have a nice day! >=20 > Nick >=20 |