Floris Bos:
> Hi,
>
> I am trying to limit the number of outgoing messages a single local Unix user
> (web hosting customer) can send in a single day.
> My first thought was to create a policy server for this, but unfortuneately
> Postfix does not supply the originating UID to the policy server, and the
> "sender" field can be easily forged.
The policy server is for SMTP mail.
postdrop is for the Postfuix sendmail command (i.e. local submission).
> So I'm looking for a different way, and found Postdrop does have a
> "authorized_submit_users" parameter.
> The idea was to have that call a MySQL stored function that administers the
> number of sent messages in the database, and returns a boolean indicating
> wheter the user is allowed to send more messages.
>
>
> Unfortuneately, that does not seem to work either.
> When I create a config file with my database details, and add it to main.cf:
>
> ==
> authorized_submit_users=mysql:/etc/postfix/mysql_outgoing_limit.cf
Instead of guessing, try to read the documentation.
man 5 postconf | less +/authorized_submit_users
Wietse
