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Exchange Receive Connector 530 Error

I am not able to receive any external email.   I telnet into the server telnet mail.mycompany.com 587, HELO gets response, MAIL FROM: email@mydomain.com gets;

530 5.7.1 Client was not authenticated
Connection closed by foreign host.

I verified that Anonymous was enabled in the receive connector, I even deleted and recreated the Receive Connector.

Nothing of note in the Eventlogs.

Any Ideas?

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1 Solution
BMardenAuthor Commented:
Sorry should have mentioned Exchange 2010 running on Server 2008R2
BMardenAuthor Commented:
Okay, I solve my own issue...

I put in a new router today and one of the port forwards listens on TCP 587 (public) and forwards to TCP 25 (private), well apparently the dumb router is not listening to instructions and is forwarding on port 587 (private) which is going to Client Receive connector listening on 587 and does not have Anonymous enabled.

I knew something was up when I disabled the Default Receive connector and still got a response to telnet connection.

Rezwan IslamSystems AdministratorCommented:
External emails will be received on port 25. Default receive connector use port 25. Other connector is for non-MAPI clients such as POP and IMAP. Check to see if you have "Anonymous users" ticked in the permission groups tab or using EMS,
Get-ReceiveConnector -Identity "<Server name>\Default connector name" | fl PermissionGroups

then tick it if it is not. Hope this works.
BMardenAuthor Commented:
Solved own issue
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