Strange exchange looping issue - Help!

[Uhtred]

Hi there, I wonder if someone can help before we raise this with microsoft.

Since last week we are having issues with out of office looping. WHat happens is the following...

A user with turn their OOO on, and while they are away an email will come through from an internal address which is sent to exchange vie SMTP, for example an office scanner, this address does has NOT have a mailbox in exchange.

THe user gets the email fine and they can even turn their OOO off but in the message tracker we are getting more and more emails, with sender being the user and recepient being the SMTP address, which remain active and generate the following log which goes round and round and round about 10 times every minute.

http://dl.dropbox.com/u/2461636/Exchange issue.jpg


We are having problems with log file space filing up and the problem is getting worse as more emails are being generated.

We haven't changed anything on exchange since the problem started and we're at a loss!

 

[malman]

I take it the scanner has an invalid local email address then as far as exchange is concerned? what happens if you add this address to a mailbox so that the OOO reply can be delivered?

 

[ethos]

Only one message is sent when out of office is enabled... so it shouldn't be looping. Might be worth adding the address as an additional SMTP address on your account and seeing what exactly what is going on.

 

[Uhtred]

Turns out this was caused by exclaimer mail utilities. We updated the software to version 4.82 a couple of weeks ago and to start with we didn't detect the issue because it took a little while for mails to start looping at the categorizer stage.

We were told by their support to downgrade to version 4.64 which solved the problem. I'm a bit annoyed that this version has been out since April and they are only just starting to work on the problem. They said other customers have been affected so I don't know why they allow people to download 4.82 still.