Sahil, Thank you for your help. I created the virtual_alias_maps and now receive the expected response when initiating telnet session:
~:/var/spool# telnet localhost 25 Trying 127.0.0.1... Connected to localhost. Escape character is '^]'. 220 localhost ESMTP Postfix quit 221 2.0.0 Bye Connection closed by foreign host. It now appears there is a permissions problem with the maildir directories: Apr 17 21:22:17 "host" postfix/virtual[22764]: 2C0FD184076E: to=<us...@example.com>, relay=virtual, delay=1213, delays=1212/0.18/0/0.14, dsn=4.2.0, status=deferred (maildir delivery failed: create maildir file /var/spool/vmailbox/example.com/user1/tmp/1303089737.P22764."host": Permission denied) I have tried chmod 0700 and 0755, but I get the same "Permission denied" failure. I manually created the /var/spool/example.com/user1/ directories. I also applied directory ownership to: vmail:vmail
