[VOPmail Beta] SMTP failure

[Matthew J. Schwartz]

Title: Message

Grapevine,   Thanks for the response to Jaeme's posting earlier today.  We do quota maximum message sizes on all of our accounts, so I don't think we are getting any really large e-mails going through.    Just to clarify the problem we are having:   We are getting numerous complaints that our e-mail users cannot send outgoing mail and are experiencing timeouts when trying to send.  They can receive mail just fine.  We have looked into numerous possibilities each time this occurs:   - We checked our overall bandwidth to make sure we weren't max'd and we were at about 5% utilization of our bandwidth overall, so that wasn't the problem. - We checked the processor and memory utilization on the mail server, and both of those were barely being utilized. - We checked incoming and outgoing bandwidth on the mail server itself, and both of those seemed minimal. - We checked all VOP related services and all were running.   Looking at the environment, everything seems to be running fine, yet everybody receives timeouts when trying to send outgoing mail.  Up until about a week ago, we've been running VOP Mail for a long time without any problems.   Rebooting the server resolves the problem for some time and eventually it pops back up.  Any ideas are greatly appreciated.   Thanks! Sincerely, Matt Schwartz   -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Grapevine Staff Sent: Thursday, September 18, 2003 2:56 PM To: [EMAIL PROTECTED] Subject: [VOPmail Beta] SMTP failure I have had this problem in the past with LARGE emails, VOP mail takes an email and stores it in memory before writing it to disk (as explained to me, as I understood it.)   So when somebody sent a huge attachment, which we didn't have limits on then, it would slow down the whole server as it was being delivered. If it was really large, then NT would go to swap and that was the end of any response.     ----- Original Message ----- From: Jaeme Adams To: [EMAIL PROTECTED] Sent: Thursday, September 18, 2003 12:34 PM Subject: [VOPmail Beta] SMTP failure I was wondering if anyone else has encountered this before.  In the last three days our SMTP server has been dieing.  After a reboot it works fine for 4-5 hours and dies again.    VOP mail 5.1 Win Advanced server   Thanks Jaeme