On Mar 24, 2010, at 17:14, Wietse Venema wrote: > Daniel L'Hommedieu: >>> If all you want is treat anything.example.com as example.com, use: >>> >>> /etc/postfix/main.cf: >>> mydestination = localhost example.com pcre:/etc/postfix/mydestination.pcre >>> >>> /etc/postfix/mydestination.pcre: >>> /\.example\.com$/ whatever >>> >>> Where "whatever" may be any non-empty value. >>> >>> By design, Postfix *internals* do not depend on DNS, so that Postfix >>> keeps working when the network is down. >> >> Wietse, >> >> I think this is the piece I was missing. My hosts are named as >> hostname.department.example.com. I am building a mail catcher >> for my department, so I want my Postfix to accept mail for >> *...@*.department.example.com, and this PCRE is exactly what I was >> missing. As I mentioned, I figured it had to be something simple. >> >> More specifically, what I want is something that will catch >> r...@*.department.example.com, so that the guy who runs the >> corporate mail server doesn't get frustrated with the double-bounces >> that my department's applications generate. If I can stay off of >> his radar, I am doing good, and this mail catcher will help me do >> that. > > To fix the problem at its root, configure the machines so they > send mail as u...@example.com not u...@host.example.com.
Wietse, Thanks for the suggestion, but for reasons I'm not going to bother getting into here, this is not a practical solution for us. My real reason for writing again is to ask about PCRE support in Postfix. I have read the short PCRE README at http://www.postfix.org/PCRE_README.html, but it doesn't specifically answer this question, or maybe I am not understanding it: is PCRE supported (in Postfix) anywhere that a map would be used? I'm guessing that it is, but I am having trouble finding documentation of that. Thanks. Daniel
