Dovecot

Dovecot is a Mail Delivery Agent (IMAP, POP3), written with security primarily in mind.

Install and configure in Ubuntu 14.04 LTS

   1 apt install dovecot-imapd dovecot-pop3d
   2 # create self-signed ssl sertificate? yes
   3 # hostname: mail.example.org
   4 service dovecot status
   5 postconf -e 'home_mailbox = Maildir/'
   6 service postfix restart        
   7 vim /etc/dovecot/conf.d/10-mail.conf
   8 #mail_location = maildir:/home/%u/Maildir
   9 service dovecot restart
  10 openssl s_client -connect localhost:993 # check IMAPS connection, port 993
  11

A1 LOGIN userx passwordx
A2 LIST "" "*"
A3 EXAMINE INBOX

Create self signed cert

   1 cd /etc/dovecot
   2 openssl genrsa -out server.key 2048
   3 openssl req -new -key server.key -out server.csr
   4 ###
   5 Country Name (2 letter code) [AU]:PT
   6 State or Province Name (full name) [Some-State]:
   7 Locality Name (eg, city) []:
   8 Organization Name (eg, company) [Internet Widgits Pty Ltd]:mail.bitarus.mooo.com
   9 Organizational Unit Name (eg, section) []:mail.bitarus.mooo.com
  10 Common Name (e.g. server FQDN or YOUR name) []:mail.bitarus.mooo.com
  11 Email Address []:vitor@bitarus.mooo.com
  12 Please enter the following 'extra' attributes
  13 to be sent with your certificate request
  14 A challenge password []:
  15 An optional company name []:
  16 ####
  17 openssl x509 -req -days 3650 -in server.csr -signkey server.key -out server.crt
  18 chmod o= server.key
  19 openssl x509 -in server.crt -text
  20 service dovecot restart 
  21 openssl s_client -connect mail.bitarus.mooo.com:993