Link to home
Start Free TrialLog in
Avatar of mikel948
mikel948

asked on

Exchange Server 2007 unable to send internal email

Hey,

My Exchange Server suddenly quit sending internal email and we cannot fix it. I am running Exchange 2007 SP1 on Windows 2003 servers which are all VMware virtual machines. I have the functions broken out over three servers, MXstore is one, MXhub transport is one another , and MXClient is on the third. I have been running tis environment for over 2 years without issue. I have not applied any updates to either VMware or Exchange or Windows in the last couple of weeks.

I believe this has something to do with either the MapiDelivery service or DNS or??? because I can send outbound SMTP mail without issue. I receive inbound mail but is just sits in the Mapideliver queue as does internal emails. I have tried stopping/starting transport service, MXStore service, and mail submission service. During the course of these actions, the Mapidelivery queue release a few emails. Sometimes 100 will go sometimes none go. I cannot find any consistent patteren as to why they go or don't.  

I have started examining the DNS and DC replication on my domain but I wanted to put this out to the communitiy for help because M$ won't give me any due to the fact my boxes are VM's.

Thanks in advance for your help.

Mikel948
Avatar of Glen Knight
Glen Knight
Flag of United Kingdom of Great Britain and Northern Ireland image

First thing to do is uninstall any SPAM or virus software you have on the machines snd reboot them.

Are there any event log errors that might help?

If you look at the queues do they show an error if so what?
honestly the first thing i would do is run ExBPA and Troubleshooting analyser from the EMC toolbox
Avatar of mikel948
mikel948

ASKER

Demazter and Akhter,

Thanks for the suggestions. I am not running antivirus / antispam on any of the boxes. I have also run EXBPA and Troublshooting analyzer about 100 times. EXBPA comes back clean and the analyzer tells me I have over 50 messages stuck in my queue, which I already knew.
well if you open the MAPI Delivery Queue and check the status of any of the stuck emails what is it?
status for all messages is Ready
a long shot but is the time on your computer correct ?
No event log errors?
Are all the exchange services on all servers started?

Check that the receive connector on the servers has Exchange Servers under the permission groups checked?
Also can you ping all the servers by hostname both netbios and FQDN from all servers?
Yeah, checked that already. All DC's and exchange servers all have same time. I ran netdiag and dcdiag on all of the servers and everything comes back clean. the really frustrating thing is during a server reboot or occasionally when we stop a service, 1-5 emails get sent from the MapiDelivery queue, so I know that it technical is "working" I have been looking into the idea of back pressure but have not come up with anything.
Are the exchange servers all dc's?
If so they MUST also be global catalogue servers!
none of my Exchange servers are DC's.
have you made sure that windows firewall is not on ?

are all VM on the same host machine?

is your mailbox server low on disk space ?
Firewall off. VM's are spread across 3 VMware host servers. I was running into disk space issues but added 100GB to the disk
my queues just emptied!
when you added a disk ?

No disk space will cause the mail to stop floweing between servers.
Mikel948 - Is your problem resolved ?
ASKER CERTIFIED SOLUTION
Avatar of mikel948
mikel948

Link to home
membership
This solution is only available to members.
To access this solution, you must be a member of Experts Exchange.
Start Free Trial