550: User `RSCSUser@RSCSHost` is not a registered gateway user

Severity

Recoverable error.

Explanation

The SMTP server sends this message to the client to show that the indicated user ID is not a registered secure gateway user, and is not in the SMTP.SECTABLE security table.

System action

The mail is rejected. SMTP continues.

System programmer response

Update the SMTP.SECTABLE security table as necessary, or inform the unauthorized user not to use this SMTP secure gateway.

Module

SMTPRES

Destination

ProcessRQR