An error was detected while processing a file of BSMTP input.
The error message was:

  501 sender address must contain a domain

The SMTP transaction started in line 0.
The error was detected in line 1.
The SMTP command at fault was:

   mail from: userx

0 previous messages were successfully processed.
The rest of the batch was abandoned.
An error was detected while processing a file of BSMTP input.
The error message was:

  501 recipient address must contain a domain

The SMTP transaction started in line 0.
The error was detected in line 2.
The SMTP command at fault was:

   rcpt to: userx

0 previous messages were successfully processed.
The rest of the batch was abandoned.