Microsoft KB Archive/160691

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XFOR: Server Returns Error 599 when It Receives Multiple Line Responses to HELO and EHLO

Article ID: 160691

Article Last Modified on 9/30/2003



APPLIES TO

  • Microsoft Commercial Internet System 1.0 Service Pack 2



This article was previously published under Q160691


SYMPTOMS

With Microsoft Commercial Internet System (MCIS) 1.0, multiple HELO and EHLO commands may not parse and route correctly. If the responses are rejected as invalid, the multiple 200 level commands may cause the MCIS Internet Mail Server (IMS) to return a 599 error.

RESOLUTION

Upgrade your IMS servers to MCIS Service Pack 1 (SP1). This will update the Smtpsvc.dll file and correct the problem.

STATUS

Microsoft has confirmed this to be a problem in Microsoft Commercial Internet System version 1.0. This problem has been corrected in the latest U.S. Service Pack for Microsoft Commercial Internet System version 1.0. For information on obtaining the Service Pack, query on the following article in the Microsoft Knowledge Base:

183062 MCIS 1.0 Service Packs 1 and 2 Information


Keywords: kbbug kbfix KB160691