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Exchange won't deliver mail

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by dlandrum1

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Exchange won't deliver mail
I am experienceing an issue where a single individual in my office can not seem to get email from a specific company. He receives all other email communications, just not from this company. I have been in touch withthe IT contact at that company and I had him send ME an email from the contact that is trying to send to my user - - that mail did not come through either. However, when the IT contact sent me an email from the Administrator account it came through just fine. The Administrator account can also send to my end user. I turned on Message tracking to see if we could determine what the problem is as we have ruled out DNS issues, mail intercept/quarantine programs and incorrect addresses.

In the message tracking, for the messages that DO come through, there are 7 lines of data tracking, beginning with the message being submitted to Advanced Queue and ending with the message delivery. For the messages that DO NOT go through, there are only twolines in the message tracking log - Message submitted to advanced queueing and Started Message Submission to Advanced Queue. Don't know if this means that MY server dropped the message, or there was something in the message header that caused it to be dropped, ... the only thing I know for certain is I know that I know nothing...!!!

Neither I not the IT contact on the other end have the foggiest notion why it would ONLY be the mail from any other than the Administrator account at this particular company.

Anyone had this bizarre experience before? Willing to share your fix?

Thanks!
Deb

2 replies

by kdrungilas

do you have any entries in your Application Logs that may correspond to the missing mail? Are you using Exchange filtering option on the IMS? [IMS Connector/Message Filtering]

by dlandrum1

I am using Message Filtering through the Exchange System Manager/Global Settings/Message Delivery/Filters. I have checked and there is no reference within the filters for incoming messages that corelates back to the IP information for the source of this mail. I can tellnet to them over port 25, then can telnet to me over port 25, when the Admin account sends a message, Message Tracking shows it coming all the way through the Exchange configuration to be delivered. When the single individualsends a message, the Message Tracking shows that the message is ready to be placed in the queue, but then, for some reason it gets dropped out. The IT consultant for the company in question has informed me that they have the identical situation with a different individual within their company sending to a different recipient company....this leads me to believe that it has to be something within their set up that is causing these individuals messages to be dropped.

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