Microsoft KB Archive/140907

= Microsoft Knowledge Base =

Cannot Send E-mail to X.400 Addresses
Last reviewed: October 7, 1997

Article ID: Q140907

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 may not be able to send e-mail from MSN, The Microsoft Network, to X.400 addresses.

MORE INFORMATION
X.400 is a UNIX-based protocol for e-mail. Although MSN supports the SMTP standard required to send e-mail to X.400 addresses, most X.400 addresses (when properly formatted using SMTP syntax) exceed the 64-character length limit for addresses in MSN mail.