On Fri, 11 May 2001, Mike Nielsen wrote:
> There are some sites that I cannot send mail to, the connection always times
> out.   If from my linux firewall I telnet to the given smtp server port 25 it
> won't connect.  However if I telnet from a machine behind the firewall (The
> natted boxes get the same IP as the router) I connect just fine.   It isn't
> every smtp host just a few that I have run accross.  It dosn't seem to be any
> particular type of remote host either, some sendmail, some exchange.
>
> I can't seem to figure out what is going on.
>
> I have disabled the firewall and get the same result.
>
> Anyone ever run accross this type of thing before?

Do you have ip_masq_autofw or a similar module forwarding ports 1024: into
your internal network?

-- 
Nate Carlson <natecars at real-time.com>   | Phone : (952)943-8700
http://www.real-time.com                | Fax   : (952)943-8500