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RE: Weird slowness

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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Old 09-24-2004
Adam Clark
 
Posts: n/a
Default RE: Weird slowness

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

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