504 need to authenticate errors and cross forest domains
We are having issues with people in other domains which we have trust setup between sending duplicate emails out. I wanted to know what best practice for setting up these types of scenarios is.
The errors are:
This is an SMTP protocol error log for virtual server ID 1, connection #5249. The remote host "172.x.x.x", responded to the SMTP command "xexch50" with "504 Need to authenticate first ". The full command sent was "XEXCH50 1848 2 ". This will probably cause the connection to fail.
It doesn't actually fail, it just sends the emails twice occasionally.
Any suggestions would be appreciated, thanks!
The errors are:
This is an SMTP protocol error log for virtual server ID 1, connection #5249. The remote host "172.x.x.x", responded to the SMTP command "xexch50" with "504 Need to authenticate first ". The full command sent was "XEXCH50 1848 2 ". This will probably cause the connection to fail.
It doesn't actually fail, it just sends the emails twice occasionally.
Any suggestions would be appreciated, thanks!
Jeff Perry
What version of Exchange? Is this POP access?
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ASKER
2003, POP is disabled.
Yes we have SMTP connectors setup between each site.
I was going to follow these instructions to setup the cross-forest authentication, right now it's just setup for authenticated users. There are not any user accounts on each side that allow this access to go through.
http://support.microsoft.com/kb/828770
I will look into the AV blocking, I believe they are using Symantec to check for viruses.
Yes we have SMTP connectors setup between each site.
I was going to follow these instructions to setup the cross-forest authentication, right now it's just setup for authenticated users. There are not any user accounts on each side that allow this access to go through.
http://support.microsoft.com/kb/828770
I will look into the AV blocking, I believe they are using Symantec to check for viruses.
ASKER
Turns out the AV issue is still a major problem, thanks for that suggestion with the email. However we are still having that issue and I didn't go forward with the fix, any suggestions on best practice for setting up the SMTP connectors so I don't have these types of errors? Better to point it to the public IP instead of private? It shows DNS errors in message queuing with the connector as well.
ASKER
The duplicate mail messages problem was resolved.