Hello Tim, On Sun, Apr 02, 2006 at 06:07:40PM -0700, Tim Watkins wrote: > I'm trying to use postfix to send registration emails to new users. If the > server sends a mail to a smaller service (like roadrunner, sympatico, ISP's > etc) the mails are delivered without an issue, however when sent to > yahoo/hotmail the emails sit in the queue and time out giving an error: > > connect to mx4.mail.yahoo.com[66.218.86.254]: Connection timed out > > I'm running php-nuke on: > * Trustix Linux 2.4.31-6tr > * Apache/2.0.55 > * PHP Version 4.4.1 > * MySQL 4.1.15 > * Python 2.2.3 > I have a dynamic DNS domain, and I'm thinking it may be the root of all > this evil, however, I was told that if I set the $Relayhost in the postfix > config, I wouldn't get the error connecting to mx4.mail.yahoo.com, because > it would relay off my ISP's smtp server. I have set the relayhost, but I'm > still getting the error.
I really don't think it is. If your problem was the forward/reverse resolution of your domain, you would receive bounces from the target mail servers (e.g. Yahoo) that would be rejecting your mail (returning SMTP errors) because they can't resolve your domain or find a domain name for your IP address. That doesn't seem to be the case. What you're showing really looks like an IP connectivity issue to the SMTP port. I've never heard anything like Yahoo and Hotmail blocking SMTP connections at the IP level. Someone correct me if I'm wrong. I was tempted to reply "your ISP blocks outgoing SMTP to the Internet" but then you mention that mail to many other domains is delivered properly, so that must not be the case. Or would they block SMTP out *only* to the "big guys"? That sounds unlikely. If you use relayhost set to your ISP's mail server and still get the error, what error is this? can you provide a sample? I mean, is it still a connection timeout error? to what host? is the error coming from your own Postfix or from your ISP's MTA? If it's coming from your ISP's MTA, that would mean that they don't have IP connectivity to Yahoo/Hotmail's SMTP in gateways either, and I guess that they would know this already from their customers. Weird indeed. Greets, _Alain_ _______________________________________________ tsl-discuss mailing list [email protected] http://lists.trustix.org/mailman/listinfo/tsl-discuss
