Virtual Users And Domains With Postfix, Courier And MySQL (Ubuntu 6.10 Edgy Eft)

Hello,

I just tried this tutorial and with a bit of configuration, I finally got it to partially work on our servers. Although I could receive emails, it couldn't send anything. Here's the error in the /var/log/mail.log folder:

Jun 16 18:25:48 webmail postfix/smtp[3854]: CC98E658635: to=<[email protected]>, relay=none, delay=20, delays=0.06/0/20/0, dsn=4.4.3, status=deferred (Host or domain name not found. Name service error for name=gmail.com type=MX: Host not found, try again)


Any ideas? Thanks in advance!

 

What's in /etc/resolv.conf?

 

Here's the contents of /etc/resolv.conf:

search upou.edu.ph
nameserver 210.213.119.243

===========================

210.213.119.243 is our DNS server.

 

Can you try other nameservers (e.g.

Code:

nameserver 145.253.2.75
nameserver 193.174.32.18

)
instead?

 

This seems bad. When I put those two name servers, I could send mail. So I can narrow this down to a DNS issue, yes?

 

Yes. It seems that the previous nameservers don't work as expected.

 

I don't know what happened, but after reverting to my previous nameserver, it still allowed me to send emails. Maybe it just needed a "push" or something.

Anyway, it's fine now; I'm no longer using the two nameservers you suggested earlier. I checked the logs and saw it was complaining about a queue. Eventually, I got all the emails I tried to send earlier.