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Siebel Outbound Email Issue , errors: SMTP DATA error, SMTP server unavailable: 504 5.7.4 Unrecognized authentication type ...550 Unable to relay (Doc ID 1511000.1)

Last updated on APRIL 11, 2021

Applies to:

Siebel Email Response - Version 8.0 SIA [20405] and later
Siebel Marketing - Version 16.13 [IP2016] to 16.13 [IP2016] [Release V16]
Information in this document applies to any platform.
When sending CommOutbound requests , getting : sent 0 out of 0 messages. value too long for field, POP3 logs shows:

POP3SMTP[11/29/2012 12:59:00:702]:DBG:SMTP S: RCPT TO:
POP3SMTP[11/29/2012 12:59:05:733]:DBG:SMTP R: 550 5.7.1 Unable to relay

POP3SMTP[11/29/2012 12:59:05:733]:DBG:SMTP S: DATA
POP3SMTP[11/29/2012 12:59:10:733]:DBG:SMTP R: 503 5.5.2 Need rcpt command

POP3SMTP[11/29/2012 12:59:10:733]:DBG:SMTP S: QUIT
POP3SMTP[11/29/2012 12:59:10:733]:DBG:SMTP R: 221 2.0.0 Service closing transmission channel

POP3SMTP[11/29/2012 12:59:10:733]:DBG:SMTP: Closing socket to server on port 25
POP3SMTP[11/29/2012 12:59:10:733]:ERROR:SMTP DATA error: 503 5.5.2 Need rcpt command

another error was:
POP3SMTP[11/29/2012 17:04:55:567]:ERROR:SMTP DATA error: 550 5.7.1 Client does not have permissions to send as this sender

and the problem happens with only certain email addresses put in From Adddress parameter of the Profile


On : 8.0 SIA [20405] version, Comms Server & Email Response

When attempting to send outbound email
the following error occurs.

EMR_Log GenericError 1 0000000950b51734:0 2012-11-27 15:36:03 SMTP server unavailable: 504 5.7.4 Unrecognized authentication type

ObjMgrLog Error 1 0000000950b51734:0 2012-11-27 15:36:03 (commdlv.cpp (600)) SBL-CMO-00155: Error occurred on sending message to '' with subject = 'test after reboot'.
CommSrvr CommSrvrWarning 2 0000000950b51734:0 2012-11-27 15:36:03 Error occurred on sending message to ''  with subject = 'test after reboot'.(SBL-CMO-00155)

The issue can be reproduced at will with the following steps:
1. Send an outbound email
The issue has the following business impact:
Due to this issue, users cannot use email functionality




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