troubleshooting Question
550 5.7.1 RESOLVER.RST.AuthRequired; authentication required
Castlewood asked on
The web server in DMZ is not able to send mail to a distribution group in our Exchange 2010. I'm sure the receive connector has been set to allow delivery of internal emails from anonymous users with this command:
Get-ReceiveConnector "RelayWeb” | Add-ADPermission -User "NT AUTHORITY\ANONYMOUS LOGON" -ExtendedRights "Ms-Exch-SMTP-Accept-Autho
and from the log tracking I can see the email did get through the connector but then failed in routing to this distribution group. The error is:
550 5.7.1 RESOLVER.RST.AuthRequired;
What could be wrong? Could a distribution group be set up to only allow authenticated users to send mail? How to resolve the issue?
Please help. Thanks.
Get-ReceiveConnector "RelayWeb” | Add-ADPermission -User "NT AUTHORITY\ANONYMOUS LOGON" -ExtendedRights "Ms-Exch-SMTP-Accept-Autho
and from the log tracking I can see the email did get through the connector but then failed in routing to this distribution group. The error is:
550 5.7.1 RESOLVER.RST.AuthRequired;
What could be wrong? Could a distribution group be set up to only allow authenticated users to send mail? How to resolve the issue?
Please help. Thanks.
Learn from the best
Network and collaborate with thousands of CTOs, CISOs, and IT Pros rooting for you and your success.
Andrew Hancock - VMware vExpert
See if this solution works for you by signing up for a 7 day free trial.
Unlock 1 Answer and 4 Comments.
Try for 7 days”The time we save is the biggest benefit of E-E to our team. What could take multiple guys 2 hours or more each to find is accessed in around 15 minutes on Experts Exchange.
Our community of experts have been thoroughly vetted for their expertise and industry experience.