I have been trying to resolve this issue lately with no success. Sorry for the long post. Here is my setup:
MYCOMPANY.COM: Exchange 2003 SP2
COMPANYB.COM: Exchange 2003 (Not sure of the SP)
1. I have a distribution group created in my AD. It has the following email address:
COMPANYC@MYDOMAIN.COM
2. I have also create 2 mail enabled contacts. Their addresses are:
USER3@COMPANYB.COM
USER4@COMPANYB.COM
3. The members of the DL in step 1 are as follows:
USER1@MYDOMAIN.COM
USER2@MYDOMAIN.COM
USER3@COMPANYB.COM
USER4@COMPANYB.COM
Here is my problem:
An outside vendor sends an email to COMPANYC@MYDOMAIN.COM. This email is received by USER1 and USER2 in my domain (as expected). But USER3 and USER4 at COMPANYB.COM does not receive the email.
Troubleshooting steps:
1. I used Message Tracking to track the message. It shows that it came in, was delivered to the users in MYDOMAIN.COM. It also shows that the message was transfered to the email server at COMPANYB.COM.
2. In the Exchange System Manager, I expanded Global Settings and then clicked on Internet Message Formats.
In the right pane was a Default Policy. This policy applied to all domains (*). In the properties of this policy on the Advanced tab, the following is UNCHECKED:
Allow out of office responses
Allow automatic replies
Allow automatic forward
Thinking this could be the problem, I created a new policy that applied only to the COMPANYB.COM domain. In this policy I CHECKED the following boxes:
Allow automatic replies
Allow automatic forward
Now here is a strange part. It seemed to work for 3 days after making this change. Then all of a sudden it quit forwarding the messages to COMPANYB.COM (I had not made any changes at all to Exchange that could have caused it to quit working).
3. I created 2 additional mail enabled contacts. One going to my personal hotmail address and the other going to my personal gmail address. I added these new contacts as members of the DL. When the outside vendor sends an email to the DL every member of the DL receives the message EXCEPT USER3 and USER4 at COMPANYB.COM.
4. I can send emails to the users at COMPANYB.COM by selecting the contacts from the GAL.
5. I have checked with the admin at COMPANYB.COM and he says that they are not blocking the messages. I have also had the users at COMPANYB.COM verify that the messages are not ending up in their Junk Email folders.
I am possibly overlooking something here but for the life of me I cannot figure out what is causing the problem.
Once again sorry for the length of this post. Thanks in advance for any assistance that can be offered.
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