Microsoft Knowledge Base Article
This article contents is Microsoft Copyrighted material.
©2005-©2007 Microsoft Corporation. All rights reserved.
Terms
of Use |
Trademarks
Article ID: 873022 - Last Review: September 20, 2011 - Revision: 2.0
You receive the"0x800CCC69 SMTP_550_MAILBOX_NOT_FOUND" error message or the “503 Sender already specified†error message when you try to send an e-mail message in Outlook Express or in Outlook on a computer that is running Windows XP Home Edi...
When you use Microsoft Outlook or Microsoft Outlook Express on a computer that is running Microsoft Windows XP Home Edition to send a new e-mail message, you may experience the following symptoms:
- In Outlook, you may receive the following error message:
Unable to deliver the message due to a communication failure
……………………… 503 Sender already specified.
- In Outlook Express, you may receive the following error message:
error: 0x800CCC69 SMTP_550_MAILBOX_NOT_FOUND
This issue may occur if the firewall settings in the Freedom program from Zero-Knowledge Systems Inc. are not configured correctly on your computer.
You may contact Zero-Knowledge Systems Inc. if you require help in configuring the firewall in Freedom program so that it is compatible with Outlook and Outlook Express.
The third-party products that this article discusses are manufactured by companies that are independent of Microsoft. Microsoft makes no warranty, implied or otherwise, regarding the performance or reliability of these products.
Microsoft provides third-party contact information to help you find technical support. This contact information may change without notice. Microsoft does not guarantee the accuracy of this third-party contact information.
APPLIES TO
- Microsoft Outlook Express 6.0
- Microsoft Office Outlook 2003
- Microsoft Outlook 2002 Standard Edition
- Microsoft Outlook 2000 Standard Edition
| kbinfo kbtshoot kbprb KB873022 |
Community Feedback System
Very often, it takes hours to solve a problem. Very often, you've looked high
and low, and have tried a lot of solutions. When you finally found it, chances
are, it was because someone else helped you. Here's your chance to give back.
Use our community feedback tool to let others know what worked for you and what
didn't.
Please also understand that the community feedback system is not warranted to be
correct, it's simply a system that we've built to let people try and help each
other. If something in a feedback response doesn't make sense to you, or you're
not comfortable making changes that the feedback talks about (like registry
edits), please consult a professional.
Thank you for using kbAlertz.com Feedback System.
-- Scott Cate
|
Anonymous User
|
Reported as Irrelevant
|
| Written:
8/20/2004 6:51 PM |
|
|
|
Manish
|
Reported as Irrelevant
|
| Written:
1/26/2005 5:59 AM |
|
|
|
juron
- juron NOSPAM-AT-NOSPAM giomail.co.uk
|
Reported as Irrelevant
|
| Written:
1/28/2005 5:21 AM |
|
|