คอนฟิก Postfix SMTP AUTH กับ Dovecot บน Fedora 17

อ่านเจอจากเว็บไซต์ spalinux เป็นบทความที่มีประโยชน์ เพราะใช้ dovecot authen mail ก่อนจะส่งออก เป็นการป้องกัน และเช็ค ไม่ให้เราโดนรีเลสแปม

login-before-send-mail-by-configure-smtp-auth-in-postfix-on-centos-6

configure-postfix-smtp-auth-with-dovecot-on-fedora-17

dovecot: pop3-login: Aborted login:

howto fix logmail dovecot: pop3-login: Aborted login:

edit: /etc/dovecot.conf

disable_plaintext_auth = no
auth_mechanisms = plain login

dovecot with ssl (995)

Reference:

Howto: Linux Dovecot Secure IMAPS / POP3S SSL Server configuration

by Nix Craft on July 16, 2007 · 1 comment· LAST UPDATED July 16, 2007

in CentOS, Debian / Ubuntu, EMail Servers

Q. How do I configure Dovecot IMAPS and POP3s server using SSL certificate? Can I use SSL certificates generated for Postfix mail server?
A. Dovecot is an IMAP server for Linux/UNIX-like systems, written with security primarily in mind. It also contains a small POP3 server. It supports mail in either of maildir or mbox formats.
You need to enable POP3s and IMAPS. Open default configuration file:
# vi /etc/dovecot.conf
Make sure POP3S and IMAPS are enabled:
protocols = imaps pop3s
Next you must set PEM encoded X.509 SSL/TLS certificate and private key. They're opened before dropping root privileges, so keep the key file unreadable by anyone but root (see how create certificate CSR and configure certificates for Postfix):
ssl_cert_file = /etc/postfix/ssl/smtp.theos.in.crt
ssl_key_file = /etc/postfix/ssl/smtp.theos.in.key
If key file is password protected, give the password using ssl_key_password directive:
ssl_key_password = myPassword
Save and close the file. Restart Dovecot server:
# /etc/init.d/dovecot restart