What is alert 8104?


A remote system issued a VRFY command to GMS but GMS has been configured not to respond with any information. GMS has rejected the command.

In this case session Undefined was processing a connection from the server/client at Undefined when it received the command


so GMS responded with

558 VRFY not allowed.

This problem is most likely to be caused by someone who is attacking your system in an attempt to find a weakness. This potential attack has been identified by GMS and ignored. To find out why this is being done, contact the owner of the IP address Undefined and ask them. Configuring GMS to not respond to VRFY commands is recommended to help keep email addresses on your system private and secure.

See Also:

Keywords:VRFY attack command not allowed 8104

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