... > how does the application send mail? > It's via the php mail function, which I believe just uses a $ sendmail blablah... internally (ie, it gets sent by postfix).
> if it's with smtp, then use REDIRECT or FILTER in an smtpd restriction > check. > > but it's better to let the application use a specific postfix instance that > does never send mail. Can someone point me to a gentle introduction to postfix configuration? I'm obviously pretty stupid and just can't work out how to do anything... putting [EMAIL PROTECTED] REDIRECT [EMAIL PROTECTED] into /etc/postfix/access (with a postmap /etc/postfix/access and restart of the daemon) does nothing (or rather [EMAIL PROTECTED] still gets the message). There are so many files, and so many configuration options I'm just getting lost. It seems as though there are about 10 different ways to do what I want but I couldn't find a single example that worked... Any further pointers most welcome. Thanks Anton