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Latest Tutorials Setup a Mail Server in FreeBSD with Postfix and Dovecot
Latest Tutorials Setup a Mail Server in FreeBSD with Postfix and Dovecot | Setup a Mail Server in FreeBSD with Postfix and Dovecot |
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| Monday, 02 June 2008 | |
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This tutorial show you how to configure a FreeBSD Mail Server using Postfix as a MTA (Mail Transfer Agent) and Dovecot as IMAP and POP3 Server. Step 1. Compile and install Postfix from ports -------------------------------------------------------------- cd /usr/ports/mail/postfix make install Step 2. Configure Postfix ---------------------------------- Create or modify file: /usr/local/etc/postfix/main.cf, to have the following content: # -------------------- main.cf ----------------------------------------- queue_directory = /var/spool/postfix command_directory = /usr/local/sbin daemon_directory = /usr/local/libexec/postfix mail_owner = postfix unknown_local_recipient_reject_code = 550 mynetworks_style = host debug_peer_level = 2 debugger_command = PATH=/bin:/usr/bin:/usr/local/bin:/usr/X11R6/bin xxgdb $daemon_directory/$process_name $process_id & sleep 5 sendmail_path = /usr/local/sbin/sendmail mailq_path = /usr/local/bin/mailq setgid_group = maildrop html_directory = no manpage_directory = /usr/local/man sample_directory = /usr/local/etc/postfix readme_directory = no mydomain = example.com myhostname = firewall.$mydomain myorigin = $myhostname mydestination = $myhostname, localhost,$mydomain mynetworks = 10.0.0.5/32 mynetworks_style = subnet # --------- end of file main.cf -------------------- Add the following line to /etc/rc.conf postfix_enable="YES" Edit /usr/local/etc/rc.d/postfix and change variable postfix_enable to "YES" Notes: Note1 -------- Don't forget to setup in main.cf the variable: mydestination = $myhostname, localhost,$mydomain If you forget to do that, you will get rely denied error, and emails that comes to your domain name will be rejected. If you have many domains you can use transport_maps variable: mydestination = $mydomain, $myhostname, $transport_maps, localhost Transport maps can be also used from within mysql (for large mail servers with postfix compiled and configured with virtual users and MySQL support. If you are interested there is a tutorial on that topic on our website. Note2 -------- Make sure you either add your IP in main.cf with your mynetworks variable or setup smtp server with authentication and allow your username to use SMTP with authentication. mynetworks = 10.0.0.2/32 Step 3. Start postfix --------------------------- Run command: /usr/local/etc/rc.d/postfix start If you have a problem when starting postfix or trying to send email, postfix is not working and you get a message in /var/log/messages like this: postfix/smtpd[6877]: fatal: open database /etc/aliases.db: No such file or directory create an empty file /etc/aliases and then recreate aliases DB with command: postmap /etc/aliases At this point you should have a full working mail transport agent (MTA). The next step is to configure a POP3/IMAP client so we (mail clients) could get emails from mail server. Step 4. Install Dovecot POP3/IMAP Server ------------------------------------------------------- cd /usr/ports/mail/dovecot make install This will start fetch/compilation/installation process of Dovecot from Ports. Edit /etc/rc.conf and add: dovecot_enable="YES" to start dovecot at boot. Edit /usr/local/etc/rc.d/dovecot, and change dovecot_enable variable to "YES". Create a file /usr/local/etc/dovecot.conf with the following content: # ----------------- /usr/local/etc/dovecot.conf --------------------- protocols = imap pop3 disable_plaintext_auth = no ssl_disable = yes mail_location = mbox:~/mail/:INBOX=/var/mail/%u mail_privileged_group = mail verbose_proctitle = yes first_valid_gid = 0 protocol imap { imap_client_workarounds = delay-newmail outlook-idle netscape-eoh tb-extra-mailbox-sep } protocol pop3 { pop3_uidl_format = %08Xu%08Xv pop3_client_workarounds = outlook-no-nuls oe-ns-eoh } protocol lda { postmaster_address = This e-mail address is being protected from spam bots, you need JavaScript enabled to view it sendmail_path = /usr/sbin/sendmail } auth default { mechanisms = plain passdb pam { } userdb passwd { } user = root } dict { #quota = mysql:/usr/local/etc/dovecot-dict-quota.conf } plugin { } # ----------------- end /usr/local/etc/dovecot.conf ---------------- Save file and start dovecot: /usr/local/etc/rc.d/dovecot start You should now have a full working mail server. If you've configured an email client and you are not able to connect to your mail server check /var/log/messages and /var/log/maillog files for errors. After configuring your mail server you should be able to: - get emails from your mail server using an email client, configured to use an account from mail server using POP3 or IMAP protocols (for this tutorial it will work with FreeBSD system accounts, if you want to configure an email server to work with virtual users see other tutorials on our website). - send emails using SMTP server from the mail server you've configured; - the mail server will be able to receive emails sent from other mails server/Internet. |
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| Last Updated ( Thursday, 05 June 2008 ) |
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