can't telnet out port 25

Neil Joseph Schelly neil at jenandneil.com
Thu Nov 15 12:30:15 EST 2007


On Thursday 15 November 2007 12:06, Charlie Farinella wrote:
> On Thursday 15 November 2007, Ben Scott wrote:
> >   What happens when you try?  Do you get an error message?  Does it
> >   just sit forever waiting to connect?
>
> # telnet mail.appropriatesolutions.com 25
> Trying 63.131.36.2...
> telnet: connect to address 63.131.36.2: No route to host
> telnet: Unable to connect to remote host: No route to host

Can you pint that host?  "No route to host" generally indicates you cannot 
even ping an address, due to having no connection to it.  What happens when 
you telnet to a known mail server.  For example,
> telnet mail.neilschelly.com 25

That should work and if it doesn't, it's GoDaddy.

> > iptables -L -n -v --line

It doesn't appear that anything is being blocked outgoing and all incoming 
packets that are part of a locally-generated connection are allowed, so 
iptables isn't interfering.
-N



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