Microsoft KB Archive/937298

= You receive an error message when you send a meeting request by e-mail in Communications Server 2007 =

Article ID: 937298

Article Last Modified on 8/15/2007

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APPLIES TO


 * Microsoft Office Communications Server 2007 Enterprise Edition
 * Microsoft Office Communications Server 2007 Standard Edition

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SYMPTOMS
When you create a new meeting by using the Web interface in Microsoft Office Communications Server 2007, you select the option to send the meeting request by e-mail. However, you receive an error message that states that all e-mail messages could not be sent or that some e-mail messages could not be sent.



CAUSE
This issue occurs because McAfee Access Protection blocks TCP port 25 to prevent the mass mailing of worms.



RESOLUTION
To resolve this issue, disable the Prevent mass mailing worms from sending mail option in McAfee Access Protection. To do this, follow these steps.

Important These steps may increase your security risk. These steps may also make the computer or the network more vulnerable to attack by malicious users or by malicious software such as viruses. We recommend the process that this article describes to enable programs to operate as they are designed to or to implement specific program capabilities. Before you make these changes, we recommend that you evaluate the risks that are associated with implementing this process in your particular environment. If you decide to implement this process, take any appropriate additional steps to help protect the system. We recommend that you use this process only if you really require this process.
 * 1) Start the McAfee Virus Scan Console.
 * 2) Right-click Access Protection, and then click Properties.
 * 3) On the Port Blocking tab, click to clear the Prevent mass mailing worms from sending mail check box, and then click OK.
 * 4) Exit the McAfee Virus Scan Console.



MORE INFORMATION
For information about how to contact McAfee, click the appropriate article number in the following list to view the article in the Microsoft Knowledge Base:

65416 Hardware and software vendor contact information, A-K

60781 Hardware and software vendor contact information, L-P

60782 Hardware and software vendor contact information, Q-Z

The third-party products that this article discusses are manufactured by companies that are independent of Microsoft. Microsoft makes no warranty, implied or otherwise, about the performance or reliability of these products.

Additional query words: OCS2007 OCS

Keywords: kbtshoot kbexpertiseinter kbprb KB937298

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