DOCUMENT:Q245446 10-FEB-2002 [exchange] TITLE :XCLN: Error Message: No Transport Provider Was Available PRODUCT :Microsoft Exchange PROD/VER::5.5 OPER/SYS: KEYWORDS: ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft Exchange Server, version 5.5 - Microsoft Outlook 2000 - Microsoft Outlook 98 - Microsoft Outlook 97 ------------------------------------------------------------------------------- SYMPTOMS ======== When you use a simple Messaging Application Programming Interface (MAPI) profile, you may receive the following error message: No transport provider was available CAUSE ===== Your profile contains both of the following services: - An internet e-mail service such as Simple Mail Transport Protocol (SMTP) or Post Office Protocol 3 (POP3) -And- - Microsoft Exchange Server service This behavior is due to the way that MAPI handles SMTP address resolution. While this configuration may appear to work, the resolution order, and therefore the ability to resolve SMTP addresses correctly, may not work. This behavior becomes more noticeable in complex organizations. This configuration also causes issues when you connect to a computer that is running Microsoft Exchange Server. Microsoft does not support this configuration. For additional information about the support limitations of MAPI provider services, click the article number below to view the article in the Microsoft Knowledge Base: Q234936 XCLN: Support Boundaries of MAPI Provider Services WORKAROUND ========== To work around this behavior, create two different profiles: one for the Internet mail service and one for the Exchange Server service. For additional informationabout how to set up Outlook profiles and how to configure Outlook to prompt you for a profile, click the article number below to view the article in the Microsoft Knowledge Base: Q195478 OL2000: (CW) User Profiles and Information Services Q182159 OL98: (CW) User Profiles and Information Services Q162203 OL97: User Profiles and Information Services When you set up two different profiles, you must quit Outlook before you can switch to the other profile. Another way to work around this behavior is to use Outlook Express for POP3 or SMTP internet e-mail services, and to use Outlook when you connect to a computer that is running Exchange Server. This information applies to using Microsoft Mail in a profile with Exchange and/or Internet Mail Service. In addition, Microsoft recommends that you have a separate profile for the Microsoft Mail service. MORE INFORMATION ================ If you install Internet Mail Service (IMS) on a computer that is running Exchange Server, mail is automatically sent using Exchange Server. The SMTP server that you specify as your Internet e-mail account is not used. The Outlook program, acting as the Exchange client software, sends an NspiResolveNames request to Exchange Server. If you install IMS, Exchange Server attempts to handle the message even if you have not correctly configured it to send Internet e-mail. In such a situation, a non-delivery report (NDR) is received. There is no client resolution available for this situation other than the use of separate user profiles for Outlook. Configure Exchange to send SMTP mail by installing IMS, or to use another e-mail program to send Internet e-mail. Additional query words: outbox stuck exchange ====================================================================== Keywords : Technology : kbOutlookSearch kbExchangeSearch kbExchange550 kbZNotKeyword2 kbOutlook2000Search kbOutlook97Search kbOutlook98Search kbZNotKeyword3 Version : :5.5 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.