Posfix EMail Server Smtp, Pop & Imap Client Secure Authentification With Dovecot SetUp on Linux Ubuntu Step-by-Step Easy Visual-Guide

The Easy Linux Visual-Guide shows you How to Install, Configure and Getting-Started with the Postfix eMail MTA on Ubuntu Linux.

The Postfix+Dovecot Configuration Proposed will Permit the eMail Clients Connection and Retrieval from your Server.

If you Do Not Already Dispose of a Working Postfix eMail Server then Before Follow the Guide to Postfix Configuration.

Included there is also a Link to How Create a Self Signed SSL Certificate Needed for Postfix+Dovecot Authentication.

1. Open Terminal Window
   (Press “Enter” to Execute Commands)

   Cmd and Search “term”

   

   In case first see: Terminal QuickStart Guide.

2. Postfix eMail Server Basic Configuration.

   Posfix Server Getting-Started

   Link to Guide with Needed Postfix Article-Installation SetUp.

3. Install Dovecot Package

   sudo su

   apt-get install dovecot-common

4. Configure Postfix for Smtp-Auth using Dovecot SASL

   postconf -e 'smtpd_sasl_type = dovecot'

   postconf -e 'smtpd_sasl_path = private/auth-client'

   postconf -e 'smtpd_sasl_local_domain ='

   postconf -e 'smtpd_sasl_security_options = noanonymous'

   postconf -e 'broken_sasl_auth_clients = yes'

   postconf -e 'smtpd_sasl_auth_enable = yes'

   postconf -e 'smtpd_recipient_restrictions = permit_sasl_authenticated,permit_mynetworks,reject_unauth_destination'

5. Create a Self-Signed Certificate for SSL Authentication

   Self-Signed Certificate on Ubuntu

   
   Link to Guide on How to Generate a Self-Signed Certificate on Ubuntu Linux.

6. Copy Key, CSR and Certificate for Dovecot Auth

   cp </path/2>/myKEY.pem /etc/ssl/private

   cp </path/2>/myCSR.pem /etc/ssl/certs

   cp </path/2>/myCERT.pem /etc/ssl/certs

7. Setting Up Dovecot with SSL

   postconf -e 'smtp_tls_security_level = may'

   postconf -e 'smtpd_tls_security_level = may'

   postconf -e 'smtp_tls_note_starttls_offer = yes'

   postconf -e 'smtpd_tls_key_file = /etc/ssl/private/myKEY.pem'

   postconf -e 'smtpd_tls_cert_file = /etc/ssl/certs/myCSR.pem'

   postconf -e 'smtpd_tls_CAfile = /etc/ssl/certs/myCERT.pem'

   postconf -e 'smtpd_tls_loglevel = 1'

   postconf -e 'smtpd_tls_received_header = yes'

8. Then Restart Postfix

   service postfix restart

9. How to Enable Dovecot SASL Auth for Postfix.

   Enabling Dovecot SASL Auth

   Link to Guide for Dovecot SASL Secure Login Auth.