Configure SSL
2011/05/04 |
Configure SSL settings in order to encrypt datas in connection. |
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[1] | Create certificates first, see here. |
[2] | Configure Postfix and Dovecot for SSL |
root@mail:~# vi /etc/postfix/main.cf # add at the last line smtpd_use_tls = yes smtpd_tls_cert_file = /etc/ssl/private/server.crt smtpd_tls_key_file = /etc/ssl/private/server.key smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache root@mail:~# vi /etc/postfix/master.cf # line 21-22: uncomment smtps inet n - n - - smtpd -o smtpd_tls_wrappermode=yes root@mail:~# vi /etc/dovecot/dovecot.conf # line 95: change ssl = yes # line 100,101: uncomment and specify certificate ssl_cert_file = /etc/ssl/private/server.crt ssl_key_file = /etc/ssl/private/server.key root@mail:~# service postfix restart * Stopping Postfix Mail Transport Agent postfix ...done. * Starting Postfix Mail Transport Agent postfix ...done. root@mail:~# service dovecot restart dovecot start/running, process 1236 |
Configure on client. Change settings like following example. (if you use PO3S, input '995 for incoming mail) | |
Click syncronize on Windows Live Mail, then following warning is shown because certificate file is created on your server. It's no ploblem. Click 'Yes' to Proceed, then it's possible to send/receive emails trough SSL connection. | |