When a Notes user sends a message to an Outlook user, the Domino Console and Coexistence Manager for Notes (CMN) Mail Connector SMTP log shows the following:
Domino Console
03/04/2015 04:58:38 PM [0988:000D-0884] SMTPClient: ReceiveResponse: 451 4.7.0 Temporary server error. Please try again later. PRX4
03/04/2015 04:58:38 PM [0988:000D-0884] SMTPClient: Attempting to Disconnect:
03/04/2015 04:58:38 PM [0988:000D-0884] SMTPClient: CommandQUIT:
03/04/2015 04:58:38 PM [0988:000D-0884] SMTPClient: ReceiveResponse: 221 2.0.0 Service closing transmission channel
03/04/2015 04:58:38 PM [0988:000D-0884] SMTPClient: Connection terminated successfully
CMN Mail Connector SMTP log
2015-03-04 16:58:38,521 DEBUG SmtpProtocol.logging [Proxy 1] - Message Number [1] on Thread [10] from Domino (XX.X.XX.XX:49632) to Exchange (XX.X.XX.X:25): Received response: 451 4.7.0 Temporary server error. Please try again later. PRX4
2015-03-04 16:58:38,521 DEBUG SmtpProtocol.logging [Proxy 1] - Message Number [1] on Thread [10] from Domino (XX.X.XX.XX:49632) to Exchange (XX.X.XX.X:25): Sending response: 451 4.7.0 Temporary server error. Please try again later. PRX4
Exchange server version: 2013
