postfix

[amanda099]

I'm trying to setup a mail server for my ubuntu 10.04 server using

https://help.ubuntu.com/community/PostfixBasicSetupHowto

Everything's been going smooothly until the paragraph: Setting Postfix Support for Maildir-style Mailboxes.
At the end of this parahraph, when I checked the mailbox for fmaster, it said: No mail for fmaster:

luckyseven@luckyseven-desktop:~$ telnet localhost 25
Trying ::1...
Connected to localhost.
Escape character is '^]'.
220 luckyseven-desktop ESMTP Postfix (Ubuntu)
ehlo localhost
250-luckyseven-desktop
250-PIPELINING
250-SIZE 10240000
250-VRFY
250-ETRN
250-STARTTLS
250-ENHANCEDSTATUSCODES
250-8BITMIME
250 DSN
mail from: root@localhost
250 2.1.0 Ok
rcpt to: fmaster@localhost
250 2.1.5 Ok
data
354 End data with <CR><LF>.<CR><LF>
Subject: I'm testing Maildir-style Mailboxes
hi and hello
Admin
.
250 2.0.0 Ok: queued as 3304642013D
quit
221 2.0.0 Bye
Connection closed by foreign host.
luckyseven@luckyseven-desktop:~$ su - fmaster
Password:
fmaster@luckyseven-desktop:~$ MAIL=/home/fmaster/Maildir
fmaster@luckyseven-desktop:~$ mail
No mail for fmaster
fmaster@luckyseven-desktop:~$


Any ideas what went wrong in what I did ?


Further more, in paragraph: Adding your local domains to postfix.
How can I confifure my own mydestination ? i.e. how do I replace the values in:
sudo postconf -e "mydestination = mail.fossedu.org, localhost.localdomain, localhost, yourdomain.com"


I would appreciate muchly anyone could give me some light on these !

Kindly Amanda