[SOLVED] Can send external but not send/recieve internal email

[gchino]

Hi, I'm new to this and I have been giving a task on setting up email on Zimbra using Fedora 7. I got Fedora and Zimbra installed correctly and have successfully sent out emails to an external email address.

When I try to reply back I get "undelivered mail returned to sender." When I try to create a new email from an external accountand send it off from my test account I get "The e-mail system was unable to deliver the message, but did not report a specific reason. Check the address and try again. If it still fails, contact your system administrator."

I also have not been getting any response when attempting to send emails internally. I'm gonna need some major help and Thanks to everyone in advanced.

[mmorse]

Welcome to the forums,

If you listed your domain we could check mx records for you - or you can do a "dig mx domain.com"

Can you telnet to port 25 on that box? (from the outside - not any boxes on your lan)
If not: firewall or even your hosting provider blocking port 25?

Do a tail -f /var/log/zimbra.log do you see the connection attempts? what are the errors there?
-check the queue's
If that appears ok, then tail -f /opt/zimbra/logs/mailbox.log do you see the mail showing up there?

If not, the next question would be in regards to your dns setup...does this box have both a private & public ip?
Split DNS - ZimbraWiki
/blog/archives/2007/06/making_zimbra_bind_work_together_1.html

[gchino]

Domain is sleeplms.net
I can telnet to port 25 from outside the network.
When I do a tail to the zimbra.log nothing is there
When I do a tail to the mailbox.log I do not see any error messages.
The box does have a public and private address. I will read about splitting DNS. Is there anything else I should look at?

[mmorse]

Ok so your not gettting anything in the postfix log-so we'll start with dns:
-you have 2 authoritative mailservers on that domain right now
-70.91.46.20 should be an A record

If your not akin to using dig there's several websites that will check the setup for you:
http://pingability.com/zoneinfo.jsp?domain=sleeplms.net
http://www.dnsstuff.com/tools/dnsreport.ch?domain=sleeplms.net

[gchino]

MMorse, I would like to thank you for your help. That web page pingability informed me that I had some MX records problems. So I reconfig my dns and its finally working. I will do more testing but it looks pretty stable now.


Once again thank you for your assistance.

[mmorse]

no problem & welcome to zimbra!
-i'm gonna mark this thread as solved