On 10/06/2004, at 9:13 PM, Kotlowy wrote:

> Thanks for that. "remotehost.com" is actually hotmail.com with all the
> test-emails I've tried. It dosen't work either with this email account
> (skotlowy at bigpond.net.au). Same result, Deferred: Connection timed 
> out
> with bigpond.net.au. The physical connection is an ADSL modem with NAT
> configured so the BSD box can be seen on the internet.
>
> I knotice that doing a tcpdump after sending an email to hotmail.com 
> sends
> packets to lc2.bay0.hotmail.com 25. I try to telnet to this myself and 
> it
> times out. Perhaps sendmail is relaying email to the wrong address?

I think you'll find that Bigpond Broadband blocks port 25: the only way 
you'll get outgoing SMTP is to use their relay or to pay for a static 
IP (I think the block is off for those).

They informed customers directly about this earlier this year when they 
introduced it: there should be something on their support pages about 
it.
__
David Burren