Microsoft KB Archive/178218

= You receive the "The message could not be sent because an e-mail address was rejected but the server" error message when you send an e-mail message in Outlook Express =

Article ID: 178218

Article Last Modified on 1/22/2007

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APPLIES TO


 * Microsoft Outlook Express 5.5
 * Microsoft Outlook Express 5.01 Service Pack 2
 * Microsoft Outlook Express 5.0
 * Microsoft Outlook Express 4.01
 * Microsoft Outlook Express 4.0
 * Microsoft Outlook Express 5.5
 * Microsoft Outlook Express 5.01
 * Microsoft Outlook Express 5.5
 * Microsoft Outlook Express 5.01 Service Pack 1
 * Microsoft Outlook Express 5.0
 * Microsoft Outlook Express 5.5
 * Microsoft Outlook Express 5.01
 * Microsoft Outlook Express 5.0
 * Microsoft Outlook Express 4.01
 * Microsoft Outlook Express 4.0
 * Microsoft Outlook Express 5.5
 * Microsoft Outlook Express 5.01 Service Pack 2

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This article was previously published under Q178218



SYMPTOMS
When you send an e-mail message in Outlook Express, you may receive the following error message:

The message could not be sent because an e-mail address was rejected by the server. Subject ' ', Account: ' ', Server: '< WWW.XX.YYY.ZZZ >', Protocol: SMTP, Server response: '553 malformed address: >', Port: 25, Secure(SSL): No, Server Error: 553, Error Number: 0x800CCC6E



CAUSE
This error message can occur if you use either of the following formats to address your e-mail message:   Format                        Example name        John Smith  name <" last"@domain>  John Smith <"Smith"@XYZ.COM> Outlook Express version 4.0 does not support these additional RFC 822 formats for one-off addressing and personal address book (PAB) addressing.



RESOLUTION
To resolve this issue, use one of the following methods:


 * Address the message using the Simple Mail Transport Protocol (SMTP)addressing format @ (for example, jsmith@xyz.com).
 * Install Outlook Express version 4.01. Outlook Express version 4.01 is included with Microsoft Internet Explorer 4.01 and can be obtained from the following Microsoft Web site:

http://www.microsoft.com/ie/



MORE INFORMATION
Outlook Express version 4.01 supports the additional RFC 822 one-off addresses and personal address book (PAB) addresses in the following formats:   Format                        Example name        John Smith  name >" last"@domain>  John Smith <"Smith"@XYZ.COM> Outlook Express version 4.01 also supports using these formats when you define a new PAB entry. The address is parsed by Outlook Express when it is first typed and the e-mail address is stored as an SMTP address in the format @. For example, if you type "John Smith ," the name is resolved to:   jsmith@xyz.com

Additional query words: 4.00

Keywords: kberrmsg kbtool KB178218

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