Debian courier package ====================== The "courier-mta" suite in Debian is compiled with these notable specifics and differences to the upstream source: * A system user `courier` owns the files and runs the daemons, it gets created automatically by a maintainer script (postinst) * Socks 5 support is not compiled in due to the lack of courier-sox, for more details please check https://bugs.debian.org/755092#10 * Better adhere to the File Hierarchy Standard: configuration files are to be found in /etc/courier, pid and lock files in /run/courier, etc. * Some binaries were renamed because their original names are too generic, e.g. showconfig is courier-mtaconfig in Debian. Maildir setup ------------- All the mail servers integrated into the Courier suite are using the maildir storage format instead of the mbox format (refer to the maildir(5) manual page for more information). The default maildir for a given user is ~/Maildir, although you can change it by editing /etc/default/courier or running dpkg-reconfigure -plow courier-base. To create a maildir, just run as the email user: # maildirmake Maildir Vpopmail -------- There is no support for vpopmail in the Debian packages, because this would cause Courier to be removed from the main distribution. See Debian bugs #182040 and #248319 for more information. Postfix ------- See http://www.postfix.org/faq.html#maildir for information about how to advise Postfix to deliver into maildir's. Virtual Users ------------- For virtual users specified in userdb, SQL or LDAP the following values are required: home,uid,gid and password. Please if you plan to use sqwebmail package, then must read information about the SUID and SGID in the sqwebmail README.Debian file. -- PICCORO Lenz McKAY , Wed, 12 Dec 2020 10:51:54 -0400