Hello, I'm switching from postfix to courier and I have problems setting up virtualdomains.

This host is very small (~20 accounts) and I want to setup courier without depending on a DB (Berkeley, Ldap, Mysql...). I want to do everything in plain text files. The host is a Debian Sarge.

I have rawly 3 types of behaviour :

- all mail for maindomain.com is local and should be delivered to existing accounts except for 4 accounts that are routed to othermachine.maindomain.com This already works perfectly.

- all mail for anyu...@external.com should be routed to some...@somewhere.com Mail sent to exis...@client.com delivers correctly but mail to unkn...@client.com fails with "User unknown".

- all mail for anyu...@client.com should be delivered to a local account, say "client" and thus the mailbox can also receive mails sent to cli...@maindomain.com Mail sent to exis...@client.com delivers correctly but mail to unkn...@client.com fails with "User unknown".

esmtpacceptmailfor.dir/jc contains all the domains : localhost maindomain.com .maindomain.com external.com client.com

locals contains : localhost maindomain.com external.com client.com

I did not put .maindomain.com since mail for othermachine.maindomain.com should be transfered outside (not locally).

aliases contains : cat: ca...@othermachine.maindomain.com @external.com: some...@somewhere.com @client.com: john @maindomain.com: cat

I have also made a ~cat/.courier-default set to "ca...@othermachine.maindomain.com" in order to catch some "user unknown" and have them delivered (so I will be able to bounce them later when everything works).

Of course, I have run makealiases, makehosteddomains and makeacceptmailfor and restarted courier.

echo "To: some...@external.com" | sendmail -> Message is delivered to cat@othermachine, thanks to .courier-default In fact, message is delivered to cat-someone@me

echo "To: some...@client.com" | sendmail -> exactly the same.

It looks like all these mails are delivered via the last line of aliases: @maindomain.com: cat

If I remove this line, I get user unknown.

Why aren't the other aliases "seen" ? I must be missing somthing but I don't see what. I can see that qmail has a "virtualdomains" file, should I create one for courier ?

Thanks in advance for your help.