Failed mail error

If the system returns your mail immediately in a mail message with the words ``Failed Mail'' in the ``Subject'' line, there is a problem with the system channel or domain tables. Use the following procedure to check this:

1. Log in as mmdf.

2. Change directory to /usr/mmdf/bin.

3. Invoke checkaddr(ADM) with the mail address that you used. For example, if mail sylvia@seattle failed, enter:
   
   ./checkaddr sylvia@seattle

4. If checkaddr displays ``Unknown Host Domain,'' either the host or domain is not in the channel or domain files, or the /usr/mmdf/mmdftailor file contains an error.

   If checkaddr displays ``OK,'' then the host and domain are in the channel and domain files, but are incorrectly configured. Check the address with checkaddr -w to diagnose this problem.

5. Verify that your domain, channel, and /usr/mmdf/mmdftailor files are set up correctly.