What defines a Postfix installation? If I were to copy /etc/postfix and /var/spool/postfix to the new server, would something break?
I'm looking for books about Postfix and I have found a 2001 book by Richard Blum, Postfix (the definitive guide) released in Dec. 2003, and The Book of Postfix by Ralf Hildebrandt and Patrick Koetter released in Mar. 2005. Is there anything more recent? Could these earlier books lead me astray? Ivan.
