Re: SMTP virtual server only works for a few minutes! - shutting down SMTP locks up IIS Man - help pleas
- From: ZZTop <zz@xxxxxxxx>
- Date: Thu, 05 May 2005 09:42:39 -0700
I have a very similar setup (W2K IIS SMTP relay to EX 5.5), without the antispam/virus, on my IIS relay. For me it worked for several days and stopped. When I rebooted etc a few emails woudl sneak through and stop again. Not only that the "received date" would be altered to the date the Exchange box received the email, which caused confusion for the userd when email was held up for 4 hours.
My event log on the IIS server started to say:
"Message delivery to remote domain 'abcdnet.com' failed ...: The connection was dropped by the remote host'.
here abcdnet.com is our email domain name for which the relay server is accepting email. We are relaying just inbound btw.
I have yet to look closely at our Ex 5.5 logs to see what happened on the other end. I will probably need to maximize the diagnostic log settings on the ex 5.5 to see more info.
So if anyone has a clue.
My guess is something is getting filled up to the point where the SMTP server gets bogged down. Perhaps the que has too many undeliverables or maybe when a mass email virus is spreading, even if you have anti virus you still get the messages so enmail viruses can still be a problem.
DanielPR wrote:
SDC Can you resolve it??? Thanks in advance, Daniel
S.D.C. wrote:
*Equipment: Smart host server - Windows 2000 server SP4, IIS 5.0, OWA, GFI's MailEssentials/Security
I have set up an IIS SMTP virtual server/smart host on my Cisco PIX DMZ. This computer relays email to another server which runs Exchange 5.5. On the IIS server (a smart host server), I am running GFI's MailEssentials and MailSecurity - anti-spam/virus software.
Everything has worked perfectly up until Saturday night.
The problem is that the IIS Virtual server stopped "accepting" or "sending" inbound/outbound email.
The smart host will process (send/receive) email for a short time (about 3-5 minutes) if I do the following: - Stop the default SMTP virtual server but this consistently locks up IIS manager - reboot server (the only apparent option) - open up IIS manager and start the default virtual server again - after a few minutes it begins to send/receive email - this process always *stops* again after about 3-5 minutes.
Actually, a simple re-boot also does the same as above.
Important considerations: - The above procedures are consistently repeatable; - Whenever I try to view the inetpub\mailroot folder, file explorer locks up (also consistent) - There are no unusual errors in the event logs; - This is not a hd space issue (plenty of space); - This is not a low memory or virtual memory issue; - the exchange server is not faulty; - OWA still works (but email is obviously not up to date) from remote sites; - CPU activity is normal; - Absolutely no changes were made to this server in the past 2 months; - When sending an email (while smart host has failed), Exchange generates the following errors in the event log:
EVENT ID: 3011 - Source: MSExchangeIMC - Attempt to connect to host 192.168.1.2 (for xxxx.xxx) was refused. NOTE: that host address is the address of the smart host server.
EVENT ID: 3010 - Source: MSExchangeIMC - Attempt to connect failed
These errors are expected but I thought I'd add this anyway for more info.
I'm wondering if this is a GFI problem?
Questions:
Why did this suddenly happen? Why does it only work for a few minutes? How do I fix this problem? How do I delete items from C:\Inetpub\mailroot\Queue - I get a sharing violation when attempting to delete any file. Can I reinstall SMTP without having to redo all its settings?
Thank you. SDC *
--
DanielPR
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