Can't send any emails at all

[ghstridr]

Getting this error message:
msg: system failure: MessagingException
code: service.FAILURE
method: SendMsgRequest
detail: soap:Receiver
trace: btpool0-10:1242263923859:7d093917737c2f75


I can still receive emails without any issues.

Follow up:
Okay, after a restart of the zimbra service, everything seems ok again, but I'd still like to figure out what happened.

[uxbod]

Anything in /var/log/zimbra.log ? How much memory does the server have ? Is is physical or a VM ? Please update your profile with which version of ZCS you are running aswell please

su - zimbra
zmcontrol -v

[ghstridr]

Anything in /var/log/zimbra.log ? How much memory does the server have ? Is is physical or a VM ? Please update your profile with which version of ZCS you are running aswell please

su - zimbra
zmcontrol -v

Release 5.0.8_GA_2462.UBUNTU6 UBUNTU6
Running in a vm with 1gb ram, only 2 users under esx 3.5i

[uxbod]

Are you able to increase the amount of RAM at all ? That will make your experience better and will probably get rid of the issue. if you could also post the following we can check your DNS setup aswell

cat /etc/hosts
cat /etc/resolv.conf
dig yourdomain mx
dig yourdomain any
host `hostname` <- note backticks and not single quotes