On Sunday 11 September 2005 10:48 am, Jason Dixon wrote:
> On Sep 11, 2005, at 11:26 AM, jared r r spiegel wrote:
> >   i don't recall having seen a PIX do a 220 banner with
> >   _only_ asterisks.  i think they've always had 2s and 0s mixed
> >   in there in an f'd up fashion
> >
> >   but my knee-jerk is still to think of a PIX and getting it to
> >   shut the hell up.
> >
> >   what is the command.. "no fix smtp" or something?
>
> Yes, that was indeed the problem.  Thanks to everyone (Steve, Jared,
> Tamas, Benny) who suggested it.  The commands to verify and "unfix"
> the setting:
>
> pixa(config)# sh fixup
> <snip>
> pixa(config)# no fixup protocol smtp 25
>
>

The SMTP Fixup "feature" also includes several other "features" such as 
limiting concurrent connections from each external host. This "feature" 
causes so many problems for anyone with a lot of mail and are also using an 
external mail spam/virus filtering service because usually tons of mail 
originates from only a handful of servers, the filtering servers.

If anyone has any know how on tweaking Cisco's smtp fixup protocol, that would 
be great.

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