Answer
A remote system has issued the DATA command at the wrong time. The sequence of allowable commands is defined by Internet Standards and the remote client or server has not complied with these standards.
In this case, session Undefined is processing a connection from Undefined which was processing email apparently from Undefined for Undefined (if there are multiple receipts for the message, this is the first recipient). The remote server gave the SMTP command
Undefined
GMS rejected the command with
Undefined Undefined
To resolve this problem, make sure that the remote client or server at Undefined is updated with the latest Internet Compliant version.
See Also:
- What is RFC821?
- How do I contact the owner of a client?
- How do I contact the owner of a remote server?
- What is SMTP Response Code Theory?
Keywords:DATA bad sequence of commands RFC821 RFC2821