Mail from blocked users

post the output of this command run from Terminal:
postconf -n

The answer may be obvious when you look at this. If the answer is obvious, then you'll know what to edit in /etc/postfix/main.cf


Jeff

wasn't what I was thinking...

== unrelated ==
While you're making changes, change this entry:
mynetworks = 127.0.0.1/32,192.168.0.1/32,192.168.0.100-254

If you requie that clients on your LAN relay without SMTP, change it to:
mynetworks = 127.0.0.1/32,192.168.0.0/24

If you prefer an more secure config, to require all clients use SMTP-Auth, then change it to:
mynetworks = 127.0.0.1/32

You can change the above in ServerAdmin or directly in /etc/postfix/main.cf
stop/start mail service

======

Back to your problem. Did you delete the users from the cyrus database? WGM doesn't fully delete users, it leaves the user in the cyrus database.
There are several ways to do this, you could install cyradm, it's a command-line tool- not real friendly.
You could use SirAdmin (search and you'll find it) from a 10.4 client. There are some steps. Briefly:
- in /etc/imapd.conf, add a new admin user to the first line. It's best if this is NOT a user who normally checks mail (like 'admin').
- stop/start mail service
- enable mail for the user in step 1 using WorkGroupManager
- From a 10.4 client, connect to your IMAP server using SirAdmin and the admin user you enabled. If successful, you will see a list of all accounts on the server.
- For any account you want to delete, you need to add an ACL which allows you to do this. So to delete an no longer existing user 'joe', you would need to add an acl to joe's top level mailbox, the acl should give the admin user 'c' permission to that box.
- once you've given the c permission to the admin user, you can now delete the joe top level mailbox (it's children will delete with it).

clean-up any old accounts using this method. This was done from memory with very little time. If you have trouble, post back.

Jeff