Is your ISP blocking port 25 outbound traffic?
What happens if you try to telnet directly to those smtp servers, eg:
telnet serveraddress 25
Numerous ISPs only let you send outbound SMTP via there SMTP server as
a measure against spammers - if that's the case with you then you'll
need to look into smtproutes.
Regards.
On Thu, Aug 02, 2001 at 04:14:26PM -0400, Jeff Hill allegedly wrote:
> I know this is not strictly a qmail problem, but . . .
>
> Dial-up connections (using Outlook Express 5.00) can no longer connect
> to the SMTP server to send out e-mail (repeatedly times out), but
> nothing has been changed on the server or dial-up machines.
>
> There is no problem with dial-ups connecting to cucipop to pick-up mail,
> and all other Internet connections work fine on dial-up machines. Mail
> sent directly from the server works without any visible problems.
>
> The only thing I see in the qmail-send logs is quite a few
> "I_wasn't_able_to_establish_an_SMTP_connection", but the mail seems to
> go through eventually.
>
> I did recently upgraded to use rblsmtpd. I'm using supervise for
> qmail-send, running ucspi-tcp 0.84; qmail 1.03, Debian potato [kernel
> 2.2.19]. There isn't a heavy load of traffic: Qstat currently says there
> are 28 messages in queue, 0 not yet preprocessed.
>
> Thanks for any leads.
>
> Best Regards,
>
> Jeff Hill