Mail: No Such User Found on domains other than primary

[dberry]

When I send mail from any domain other than my primary domain, the message gets kicked back with a message like the one below.

Hi. This is the qmail-send program at k2smtpout02-01.prod.mesa1.secureserver.net.
I'm afraid I wasn't able to deliver your message to the following addresses.
This is a permanent error; I've given up. Sorry it didn't work out.

<[email protected]>:
70.84.137.66 does not like recipient.
Remote host said: 550-Verification failed for <[email protected]>
550-No Such User Here
550 Sender verify failed
Giving up on 70.84.137.66.

When I send a message to the address I get a No Such User Here error.

I can send and receive locally, but not outside of my server.

This only happens on domains other than my primary domain.

My server is hosted with GoDaddy running Fedora Core 2 and Plesk 7.5.4.

The domain is tullahomaonline.com, here is my report from dnsreport.com. and here is my dns entries.

tullahomaonline.com. NS ns1.tullahomaonline.com.  
tullahomaonline.com. NS ns1.midtntech.com.  
tullahomaonline.com. A 68.178.225.24  
webmail.tullahomaonline.com. A 68.178.225.24  
ns1.tullahomaonline.com. A 68.178.225.24  
mail.tullahomaonline.com. A 68.178.225.24  
ftp.tullahomaonline.com. CNAME tullahomaonline.com.  
[url]www.tullahomaonline.com.[/url] CNAME tullahomaonline.com.  
tullahomaonline.com. MX (10) mail.tullahomaonline.com.  
68.178.225.24 / 24 PTR mail.tullahomaonline.com.

Test E-mailAddress: [email protected]

Thank you for any help

 

[phoenixisp]

I'll bet you have Watchdog enabled. Try disabling it and see if that helps.

 

[dberry]

nah, I don't have watchguard installed. I think the problem is in the outside servers verifying the hosts (other than my primary account) hostname.

My hostname is midtntech.com, and the qmail control file .me is midtntech.com. I can send/receive fine from anything @midtntech.com.

When I try to receive on any other domain I get a "User not found", and when I try to send from any other domain I get the "Remote host said: 550-Verification failed for <[email protected]> 550-No Such User Here 550 Sender verify failed"

And when I do a DNSreport.com mail test it says it can't connect to the mail server, it timesout.

Any ideas? Thanks

 

[dberry]

ahh... This only happens when I send/receive to or from some mailservers. Like when I send to a hotmail account it is delivered but goes to the Junk mail folder, but when I send to Yahoo it gets sent back saying "No User Found."

Any ideas?

 

[phoenixisp]

First off, upon looking again, your hostname is a domain name, not a hostname. A hostname would be something like 'server1.midtntech.com' or 'host1.midtntech.com'.

If you Google "550 Sender verify failed" you'll find that it's a DNS issue mainly due to the fact that your hostname and domain name is the same.

 

[dberry]

phoenixisp, thanks for the reply. I orginally had server.midtntech.com and was having the same problem, so GoDaddy support told me to change it, so I did and i still got the same error. I googled for 3 days before I posted here, I hate wasting ya'lls time with my quesitons, I know you have other things to do other !

I changed it to server01.midtntech.com, using the Plesk > Server Preferences then rebooted, and still have the same problem. It is not all other mailservers, just some. I do have a firewall (Pix 501) in front of my server. Also now when I do a dns report, it says it could not connect to any of my mail servers.

Sorry, for all of the questions I am fairly new, and greatly appreciate your help thus far.

Thanks,
Daniel

 

[phoenixisp]

In addition to changing the hostname in the Plesk control panel. login using SSH and run the command:

#hostname server01.midtntech.com

Then go to the domain's panel for midtntech.com and set an A record for server01.midtntech.com in your DNS. Unfortunately you won't see the changes for a while as it can take 36 hours for the DNS change to propagate.

Then check your firewall settings for your PIX. Make sure ports 25 and 110 are open.

 

[dberry]

Phoenixisp, thank you for your help all is working now. Here is how I solved the issues for anyone who might have some of these issues in the future

Server Host Name
Thanks to phoenixisp, I know know this has to be an actual host, not just mydomain.com. so I setup an A record for server01 (call it whatever) then changed it in plesk, rebooted then in ssh ran #hostname server01.mydomain.com as root

Mail server host name in greeting
I have a Pix Firewall sitting in front of my domain, appraently there is something buggy about the fixup protocol smtp 25. So from the the firewall command line I ran

no fixup protocol smtp

then I saved the running config.

550 No Such User Problems
Well ashamed to say, I am an idiot. I forgot to remove this domain from the shared server I was on previously, and that is where the e-mail address I was trying to send the e-mail to resides. So whenever I sent e-mail to that domain, it was looking at the local server rather than my new server for the e-mail address. Lessons learned.

I hope that this helps someone in the future. Thanks again to Phoenix for the help!