Connection time out to certain email domains

[soyer38301]

We have Zimbra 5.01 (OS) installed on an Ubuntu 7.10 server. All has been working fine up to last week. I have four email domain address' that now time out and are constantly in the defered queue on the server. I can ssh into the zimbra/ubuntu server and telnet hostname 25 but cannot send mail via email client or web access. If I wait long enough I do get a delivery failure but only that it could not send.

I am a slightly higher than linux newbie. What should I be looking for? This machine has a static outside address via firewall NAT.

Thanks in advance for any help.
Scott Oyer
Illiana Tek

[mmorse]

Can we get some logs snips?
/docs/ne/latest/administration_guide/9_Monitoring.14.1.html#1075561
/var/log/zimbra.log & /opt/zimbra/log/mailbox.log are good places to start looking

[soyer38301]

zimbra@mail:~$ tail /var/log/zimbra.log
Jul 7 16:38:03 mail zmmailboxdmgr[22025]: no manager process is running
Jul 7 16:38:03 mail zimbramon[21921]: 21921:info: 2008-07-07 16:38:01, STATUS: mail.illianatek.com: antispam: Running
Jul 7 16:38:03 mail zimbramon[21921]: 21921:info: 2008-07-07 16:38:01, STATUS: mail.illianatek.com: antivirus: Running
Jul 7 16:38:03 mail zimbramon[21921]: 21921:info: 2008-07-07 16:38:01, STATUS: mail.illianatek.com: ldap: Running
Jul 7 16:38:03 mail zimbramon[21921]: 21921:info: 2008-07-07 16:38:01, STATUS: mail.illianatek.com: logger: Running
Jul 7 16:38:03 mail zimbramon[21921]: 21921:info: 2008-07-07 16:38:01, STATUS: mail.illianatek.com: mailbox: Stopped
Jul 7 16:38:03 mail zimbramon[21921]: 21921:info: 2008-07-07 16:38:01, STATUS: mail.illianatek.com: mta: Running
Jul 7 16:38:03 mail zimbramon[21921]: 21921:info: 2008-07-07 16:38:01, STATUS: mail.illianatek.com: snmp: Running
Jul 7 16:38:03 mail zimbramon[21921]: 21921:info: 2008-07-07 16:38:01, STATUS: mail.illianatek.com: spell: Running
Jul 7 16:38:03 mail zimbramon[21921]: 21921:info: 2008-07-07 16:38:01, STATUS: mail.illianatek.com: stats: Running

zimbra@mail:~$ tail /opt/zimbra/log/mailbox.log
2008-07-07 14:26:23,778 INFO [IndexReadersCache-Sweeper] [] IndexReadersCache - IndexReadersCache-Sweeper thread exiting
2008-07-07 14:26:23,967 INFO [Shutdown] [] RedoLogManager - Logged: 340 items, 4.212ms/item
2008-07-07 14:26:23,967 INFO [IncomingDirectorySweeper] [] FileBlobStore - IncomingDirectorySweeper thread exiting
2008-07-07 14:26:23,967 INFO [Shutdown] [] extensions - Destroying extensions
2008-07-07 14:26:23,984 INFO [Shutdown] [] extensions - Destroyed extension com_zimbra_cert_manager: com.zimbra.cert.ZimbraCertMgrExt@com...t ension.ZimbraExtensionClassLoader@16ee3ec
2008-07-07 14:26:23,984 INFO [Shutdown] [] extensions - Destroyed extension zimbrasamba: com.zimbra.ldaputils.ZimbraLDAPUtils...extension.ZimbraExtensionClassLoader@13829d5
2008-07-07 14:26:23,984 INFO [Shutdown] [] extensions - Destroyed extension nginx-lookup: com.zimbra.cs.nginx.NginxLookupExten...extension.ZimbraExtensionClassLoader@14ab51b
2008-07-07 14:26:23,985 INFO [Shutdown] [] extensions - Destroyed extension clamscanner: com.zimbra.clam.ClamScanner@com.zimb...tensio n.ZimbraExtensionClassLoader@29ea31
2008-07-07 14:26:23,985 INFO [Shutdown] [] soap - Servlet SoapServlet shutting down
2008-07-07 14:26:23,987 INFO [Shutdown] [] log - Shutdown hook complete

[soyer38301]

I am also hosed now for even accessing the web interface (either mail or admin). Getting a
zimbra@mail:~$ zmcontrol status
Host mail.illianatek.com
antispam Running
antivirus Running
ldap Running
logger Running
mailbox Stopped
zmmailboxdctl is not running
mta Running
snmp Running
spell Running
stats Running

Have checked the forums and see that it might be perdition running (why I don't know because I have never turned it on)...can't even start or stop tomcat -- when I input the tomcat start or stop command I get a "command not found" error.
Scott