Microsoft Knowledge Base

Cannot Send E-mail to Address Containing Exclamation Point
Last reviewed: October 7, 1997
Article ID: Q139139
The information in this article applies to:
  • The Microsoft Network versions 1.0, 1.05, 1.2, 1.3, 2.0, 2.5

SUMMARY

You cannot send e-mail messages to addresses that include an exclamation point (!). For example, you cannot send an e-mail message to the following address: 

   tac!jms!smith@txttac.attmail.com

MORE INFORMATION

If you send e-mail to an address with an exclamation point, you receive a non-delivery message from the System Administrator stating "Mailbox not available."

The Microsoft Network does not allow an exclamation point as part of an e-mail address. An exclamation point indicates path information within the recipient's internal e-mail system and is not part of Internet e-mail syntax.

When someone sends you an e-mail message, the message header contains that person's valid e-mail address.

Additional query words: 1.00 1.05 1.20 1.30 2.00 2.50 email msn
Keywords : msnmail kbusage
Version : 1.00 1.2 1.3 2.00
Platform : WINDOWS

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Last reviewed: October 7, 1997
©1997 Microsoft Corporation. All rights reserved. Legal Notices.