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// This quick guide is for mysql authentication support base on the Gentoo Virtual Mailhosting Guide
// turn ON mysql USE flag for courier-authlib. Need to authenticate against mysql database backend.
localhost ~ # nano -w /etc/portage/package.use
net-libs/courier-authlib mysql
net-mail/courier-imap mysql
localhost ~ # emerge courier-imap
// limit to mysql module only, instead load all of them.
localhost ~ # nano -w /etc/courier/authlib/authdaemonrc
authmodulelist="authmysql"
// set variables to match your setup.
localhost ~ # nano -w /etc/courier/authlib/authmysqlrc
MYSQL_SERVER localhost
MYSQL_USERNAME mailsql_admin_username
MYSQL_PASSWORD password
MYSQL_DATABASE mailsql_database
MYSQL_USER_TABLE users
# MYSQL_CRYPT_PWFIELD crypt (commented this out if you want CRAM-MD5)
MYSQL_CLEAR_PWFIELD clear
MYSQL_LOGIN_FIELD email
MYSQL_HOME_FIELD homedir
MYSQL_MAILDIR_FIELD maildir
// Start authdaemond
localhost ~ # etc/init.d/courier-authlib start
* Starting courier-authlib: authdaemond ... [ ok ]
### Courier-IMAP' ssl certificate setup
localhost ~ # nano -w /etc/courier-imap/imapd.cnf
localhost ~ # nano -w /etc/courier-imap/pop3.cnf
// change to match your site.
[ req_dn ]
C=US
ST=NY
L=New York
O=Courier Mail Server
OU=Automatically-generated IMAP SSL key
CN=mailhost.example.com
emailAddress=postmaster@example.com
// Generate Certificate
localhost ~ # mkimapdcert
...
writing new private key to '/etc/courier-imap/imapd.pem'
...
localhost ~ # mkpop3dcert
...
writing new private key to '/etc/courier-imap/pop3d.pem'
...
### Secure Authentication Setup (CRAM-MD5)
localhost ~ # nano -w /etc/courier-imap/imapd
IMAP_CAPABILITY="IMAP4rev1 UIDPLUS CHILDREN NAMESPACE THREAD=ORDEREDSUBJECT THREAD=REFERENCES SORT QUOTA IDLE AUTH=CRAM-MD5"
### Start Courier-imap daemons.
localhost ~ # /etc/init.d/courier-pop3d start
localhost ~ # /etc/init.d/courier-pop3d-ssl start
localhost ~ # /etc/init.d/courier-imapd start
localhost ~ # /etc/init.d/courier-imapd-ssl start
### Checking authentication.
// From your favorite client send an email to user@your_domain.com
// so your mail user's maildir created by your MTA.
// you can not login unless user maildir has been created.
localhost ~ $ telnet mailexample.com 143
Trying xxx.xxx.xxx.xxx...
Connected to mail.example.com (xxx.xxx.xxx.xxx).
Escape character is '^]'.
* OK [CAPABILITY IMAP4rev1 UIDPLUS CHILDREN NAMESPACE THREAD=ORDEREDSUBJECT THREAD=REFERENCES SORT QUOTA IDLE AUTH=CRAM-MD5 ACL ACL2=UNION STARTTLS] Courier-IMAP ready. Copyright 1998-2004 Double Precision, Inc. See COPYING for distribution information.
a login user@example.com password
a OK LOGIN Ok.
OK LOGOUT completed
Connection closed by foreign host.
### That's all folks.
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