SUMMARY [Cannot send mail to ARSystem]

Michael.Boyle@pscmail.ps.net
Thu, 15 May 1997 10:16:00 -0500

> Trying to send mail to ARSystem (SunOS 5.5.1) and getting the
> error message "ARSystem .. user unknown". ARSystem is well
> defined in /etc/passwd. ARSystem can send email to other users.
A big thanks to Claus Assman (he/she also had the right solution)
and all others who responded. Below is Claus's response.

Don't use uppercase letters...: man 5 passwd:
username is the user's login name. This field con-
tains no uppercase characters, and must not be more than eight
characters in length.

If you really need it, set the flag 'u' in
Mlocal,..F=..u..
^
in sendmail.cf

u Upper case should be preserved in user names for
this mailer.


Thanks again,
Michael