DOCUMENT:Q279214 08-MAY-2002 [exchange] TITLE :XIMS: Exchange Server Cannot Communicate with IIS over SSL PRODUCT :Microsoft Exchange PROD/VER::4.0,5.0,5.5 OPER/SYS: KEYWORDS:exc55 ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft Exchange Server, version 5.5 - Microsoft Internet Information Server versions 4.0, 5.0 ------------------------------------------------------------------------------- SYMPTOMS ======== The Internet Information Server (IIS) SMTP Service does not recognize the STARTTLS command that the Exchange Server 5.5 computer issues. The SMTP Protocol log on the Exchange Server computer shows that Exchange Server is giving the STARTTLS command. Next, the IIS SMTP Service responds with "220 SMTP server ready" (which is normal). Exchange Server follows by issuing the MAIL FROM command to IIS. IIS immediately generates errors by returning a "505 Must issue a STARTTLS command first" error. Then Exchange Server issues a QUIT command, and the IIS SMTP Service closes the connection. The first message that is sent from an Exchange Server computer and forwarded to the IIS SMTP Service generates a non-delivery report (NDR). A second message sent from the same Exchange Server computer and forwarded to the same SMTP Service goes through. This problem does not occur until the 128-bit encryption is enabled on the IIS 4.0 Default SMTP Site Properties page on the SMTP Service. RESOLUTION ========== A supported fix is now available from Microsoft, but it is only intended to correct the problem described in this article and should be applied only to systems experiencing this specific problem. This fix may receive additional testing at a later time, to further ensure product quality. Therefore, if you are not severely affected by this problem, Microsoft recommends that you wait for the next Microsoft Windows NT service pack that contains this fix. To resolve this problem immediately, contact Microsoft Product Support Services to obtain the fix. For a complete list of Microsoft Product Support Services phone numbers and information about support costs, please go to the following address on the World Wide Web: http://support.microsoft.com/default.aspx?scid=fh;EN-US;CNTACTMS NOTE: In special cases, charges that are normally incurred for support calls may be canceled, if a Microsoft Support Professional determines that a specific update will resolve your problem. Normal support costs will apply to additional support questions and issues that do not qualify for the specific update in question. The English version of this fix should have the following file attributes or later: Date Time Version Size File name Platform ------------------------------------------------------------- 11/01/00 7:55PM 5.5.1877.51 464 KB Smptsvc.dll Intel 11/22/00 5:18PM 5.5.1877.64 522 KB Smptsvc.dll Intel 11/22/00 9:01PM 5.5.1877.64 771 KB Smptsvc.dll Alpha STATUS ====== Microsoft has confirmed this to be a problem in the Microsoft products that are listed at the beginning of this article. Additional query words: xmrp IMS ====================================================================== Keywords : exc55 Technology : kbiisSearch kbExchangeSearch kbExchange550 kbiis500 kbiis400 kbZNotKeyword2 Version : :4.0,5.0,5.5 Hardware : ALPHA x86 Issue type : kbprb ============================================================================= THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES SO THE FOREGOING LIMITATION MAY NOT APPLY. Copyright Microsoft Corporation 2002.