dovecot - Nov 2009 - Problem with dovecot configuration + mysql (I think)

Hi everybody,

I have a problem after configuring dovecot to work with mysql (Debian 
Etch System).

When i send an email from outside, i have an undelivred mail returned to 
sender saying : Relay access denied (in reply to RCPT TO command)

In my dovecot log file i have these errors :

---------------------

Nov 28 20:08:27 myhost postfix/smtpd[5087]: connect from 
smtp5-g21.toto.com [1.2.3.4]
Nov 28 20:08:27 myhost postfix/smtpd[5087]: NOQUEUE: reject: RCPT from 
smtp5-g21.toto.com [1.2.3.4]: 554 5.7.1 <mymail at test.com>: Relay access
denied; from=<outside-mail at toto.com> to=<mymail at test.com>
proto=ESMTP
helo=<smtp5-g21.toto.com>
Nov 28 20:08:28 myhost postfix/smtpd[5087]: disconnect from 
smtp5-g21.toto.com [1.2.3.4]

----------------------

What do you think is the problem ?

Thanks,

> ---------------------
>
> Nov 28 20:08:27 myhost postfix/smtpd[5087]: connect from 
> smtp5-g21.toto.com [1.2.3.4]
> Nov 28 20:08:27 myhost postfix/smtpd[5087]: NOQUEUE: reject: RCPT from 
> smtp5-g21.toto.com [1.2.3.4]: 554 5.7.1 <mymail at test.com>: Relay 
> access denied; from=<outside-mail at toto.com> to=<mymail at
test.com>
> proto=ESMTP helo=<smtp5-g21.toto.com>
> Nov 28 20:08:28 myhost postfix/smtpd[5087]: disconnect from 
> smtp5-g21.toto.com [1.2.3.4]
>
> ----------------------
>
> What do you think is the problem ?
The problem is not in your dovecot configuration, but in your postfix 
configuration.
Relay access denied means that the server is not relaying for you. 
Either the domain is not in the relay list or you are not allowed to 
send e-mail through your server to other servers (being an open-relay) 
which is a good thing!

- Rene