[Mailman-Users] ERROR: User unknown

Jon Carnes jonc at nc.rr.com
Thu Nov 15 05:41:10 CET 2001

> Nov 15 10:17:54 cerveza postfix/smtpd[13257]: reject: RCPT from
> localhost[]: 550 <julianh at apc.edu.ph>: User unknown;
> from=<apc-staff-admin at apc.edu.ph> to=<julianh at apc.edu.ph>
> What do this mean?  Can you help me please? 

This means that the user does not exist on the mailserver.  Try sending a 
messaged directly to "julianh at apc.edu.ph" and see if you get a bounce.  
I'll wager you will - with the message 550.

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