CF mail server doesn't send emails

[Shida]

Hi everyone,
we are running a CF 4.5 server in our company. the CFMail doesn't send emails since last week. the emails are in the queue. the server IP is correct, we restarted it a few times, nothing helped.
Does anyone have any idea about possible problems?
thanks in advance.

[JR__Bob__Dobbs-qSBHQ2]

Have you looked in CF's log files for email related errors?

Does the mail server require authentication, and does CF provide authentication when trying to send?

[Shida]

it doesn't log anymore. it stopped after the email stopped. so it doesn't show any error.
and there is no authentication either.

[Newsgroup_User]

Shida wrote:
> it doesn't log anymore. it stopped after the email stopped. so it doesn't show any error.
> and there is no authentication either.


I've seen other posts that indicate sometimes an email message can cause
a log jam. It can't be sent for some goodness only knows reason and
then causes the process to abort piling up messages behind it.

What happens if you remove the first (or first few) messages in the que?

[Paritosh_Jani]

Have you recently installed any firewall (Perimeter) ? It may be blocking the traffic.

[Shida]

no. and it's not even logging the emails. and we had cleaned up the server and didn't help.