Mails stuck in Outbox

[rjrinternational]

Hi, I am using the latest version of ZD for Lion X. Since last couple of days I am facing an issue whereby mails are stuck in Outbox for 30min - 1 Hour. Can someone please help me.
Regards
RJ

[rjrinternational]

Hi,
Haven't got a solution to it yet. All mails take around 30 mins. to be send. Kindly let me know the solution urgently.
Regards
RJ

[LHammonds]

I'm new to Zimbra so take whatever I say with a few grans of salt. When I was re-installing Ubuntu/Zimbra over-n-over in a VirtualBox, I noticed one time where my messages would either not exit the outbox or take a long time. I think this was due to a mistake I made with the DNS setup.

If your mail is being delivered but taking a LONG time doing so, you might want to see if name resolution (DNS) is the problem.

LHammonds