Ralph,
Forget all the IMail stuff everyone has suggested (at least for now!), I'm
almost positive all is well with your mail system. In WUG, double click on
the host for the IMail system and on the General tab, check the very bottom
of that screen for the 'Polling Method'. If that is set to ICMP, WUG will
'ping' the host, and it _must_ get a reply, before checking the services.
This means if the ping is not answered, the service is not checked and WUG
thinks it is down (not, 'too busy to respond to ping'). If you set Polling
Methop to TCPIP (Apply, OK), then the ping is not done, but service checks
are. If your problem goes away, then sometimes the IMail computer is 'too
busy' to respond to the ping and you might look at increasing the resources,
or finding what is acting as a 'bottleneck' on that computer. Or not worry,
(too much, use the number of average misses as a guage to how well the IMail
computer is currently performing) and go back to ICMP and set the trigger
level higher so WUG ignores these transient things. Only when it gets, say 2
or 3, consecutive 'misses' will you be notified.
More memory might help on your system, but swap files, disk access often are
the cause of 'slow' performance as these are 100 times slower than RAM! Do
some more investigation of the operation of your IMail computer (Task
Manager, Performance Monitor) before throwing a new server at it. You do not
say how many users your system has and mmore users typically means more RAM,
bigger/faster HD (multiple is even better, ask Len!).
Daniel Donnelly
Ipswitch Technical Support
________________________________________________________
See our Knowledge Base at http://support.ipswitch.com/kb
----- Original Message -----
From: "Ralph Williams" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Tuesday, July 25, 2000 11:07 AM
Subject: [IMail Forum] SMTP bouncing off and on.
> We use a dual P11 300 w/256K memory, Intel 10/100 network board for our
> primary mail server. The machine is for mail only and no other programs
are
> running on it. We monitor all of our equipment with IPSwitch's What's Up
> Gold and on the mail server it is monitoring services POP3, SMTP, HTTP and
> IMAP.
>
> Since Saturday, SMTP has been bouncing up and down seven or eight times an
> hour. What's up polls ever 60 seconds, and usually, SMTP comes back up
> before the next poll, but not always. Frequently, all services will shut
> down, and come back up within 60 seconds. The processor does not show any
> particular increase in use during these times.
>
> Our load has not increased. Logs show the same amount of mail, 28,000 to
> 35,000 msgs per day depending on the day of the week as it has always
been.
> The ONLY thing I have done (last Friday) is add some rules to the
rules.ima
> and some lines in the kill file. I don't think that would cause SMTP to go
> down.
>
> Any ideas why SMTP and other services started shutting down or have I just
> out grown the size of my mail server?
>
> Ralph Williams
> http://www.wcnet.net
> 979-543-9111 or 800-569-3464
>
>
> Please visit http://www.ipswitch.com/support/mailing-lists.html
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>
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