Set up Mail Server on Ubuntu
PHP send email setup
http://ph.ubuntuforums.com/showthread.php?t=887081
To install postfix
sudo apt-get install postfix
Intall mailx package for use as command mail utility program. Mail command is installed with this package.
sudo apt-get install mailx
Add a user before you start this.
sudo useradd -m -s /bin/bash fmaster
sudo passwd fmaster
Test your default installation using the following code segment.
telnet localhost 25
Postfix will prompt like following in the terminal so that you can use to type SMTP commands.
Trying 127.0.0.1...
Connected to mail.fossedu.org.
Escape character is '^]'.
220 localhost.localdomain ESMTP Postfix (Ubuntu)
Type the following code segment in Postfix's prompt.
ehlo localhost
mail from: root@anywher.com
rcpt to: support@localhost
data
Subject: My first mail on Postfix
Hi,
Are you there?
Regards,
Admin
.(Type the .[dot] in a new Line and press Enter )
quit
Check the mailbox of support
su - support (change user to support after login to the host)Setting Postfix support for Maildir-style mailboxes
GUI - https://help.ubuntu.com/community/Postfix
Manually
Maildir is a format for an e-mail spool that does not require file locking to maintain message integrity because the messages are kept in separate files with unique names. A Maildir is a directory (often named Maildir) with three subdirectories named tmp, new, and cur. The subdirectories should all reside on the same filesystem.
Another reason to use Maildir format is that Courier IMAP/POP3 servers only work with Maildir format of mailboxes.
Please find out more about Maildir here
Instruct Postfix to use Maildirs instead of Mboxes:
sudo postconf -e "home_mailbox = Maildir/"
Ensure Procmail isn't used: (if the step was taken during dpkg-reconfigure, by mistake)
sudo postconf -e "mailbox_command = "
Restart Postfix to make changes effect.
sudo /etc/init.d/postfix restartTest your setup again
Installing courier IMAP and POP3
sudo apt-get install courier-pop
sudo apt-get install courier-imap
Adding your local domains to postfix
Add your domains to mydestination:
sudo postconf -e "mydestination = mail.thecoolmeter.com, localhost.localdomain, localhost, thecoolmeter.com"
Add your local networks, too:
Postfix comes with the localhost (127.0.0.1) entry; you may have others, here we assume your LAN is on 192.168.1.0/24. Make changes to suit your situation.
sudo postconf -e "mynetworks = 127.0.0.0/8, 192.168.1.0/24"
Make Postfix to receive mail from the Internet
Instruct Postfix to receive on all interfaces:
sudo postconf -e "inet_interfaces = all"
(optional) Make Postfix accept IPv4, IPv6 protocols
If you're not using IPv6 yet, and you're paranoid, use "ipv4" instead of "all". Again, this is to suit your own network sensibilities.
sudo postconf -e "inet_protocols = all"
Finally, restart Postfix;
sudo /etc/init.d/postfix restart
Test your setup again using following code:
telnet mail.yourdomain.com 25 ehlo yourdomain.com mail from: root@yourdomain.com rcpt to: fmaster@yourdomain.com data Subject: My first mail for my domain Hi, Are you there? regards, Admin . (and Enter In a new Line) quit
Check the mailbox of fmaster
su - fmaster
cd Maildir/new
ls
Testing Courier POP3
Type in a terminal:
telnet mail.yourdomain.com 110
Use the following example code segment for your test. Be intelligent to tweak the changes appropriately to your environment. An output like follows will display in your terminal.
Connected to mail.yourdomain.com (208.77.188.166). Escape character is '^]'. +OK Hello there.
Type the following code segment in the prompt provided by the Courier POP3 server. I assume that you are intelligent enough not to type the lines which starts from +OK
user fmaster +OK Password required. pass password +OK logged in. quit
Testing Courier IMAP
Type in a terminal:
telnet mail.yourdomain.com 143
Use the following example code segment for your test. Be intelligent to tweak the changes appropriately to your environment. An output like follows will display in your terminal.
* OK [CAPABILITY IMAP4rev1 UIDPLUS CHILDREN NAMESPACE THREAD=ORDEREDSUBJECT THREAD=REFERENCES SORT QUOTA IDLE ACL ACL2=UNION STARTTLS XCOURIEROUTBOX=INBOX.Outbox] Courier-IMAP ready. Copyright 1998-2005 Double Precision, Inc. See COPYING for distribution information.
Type the following code segment in the prompt provided by the Courier IMAP server.
a login fmaster password a OK LOGIN Ok. a logout
User email anywhere to access the mail
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