In this post, I would like to share how to install mail server on Mac OSX. Having mail server is important if you need to send email from your web application in local environment. To do this, we will use Postfix.
Postfix is a Mail Transport Agent (MTA), supporting LDAP, SMTP AUTH (SASL) and TLS. In this post, We will setup Postfix to run with SMTP.
– Mac OSX (I’m using OSX Yosemite 10.10.3).
No need it because Postfix already exist as pre-installed on Mac OSX. Open your terminal, make sure you can see response if you type below:
$ postfix postfix: error: to submit mail, use the Postfix sendmail command postfix: fatal: the postfix command is reserved for the superuser
Great, then we are going to configure it to be able for sending email.
We are going to change postfix configuration file. Run this command below:
$ sudo vi /etc/postfix/main.cf
Make sure if these lines below are exist
mail_owner = _postfix setgid_group = _postdrop
Then, add these lines at the end of file
# Use Gmail SMTP relayhost = smtp.gmail.com:587 smtp_sasl_mechanism_filter = plain smtp_sasl_auth_enable = yes smtp_sasl_password_maps = hash:/etc/postfix/sasl_passwd smtp_use_tls = yes smtp_tls_security_level = encrypt tls_random_source = dev:/dev/urandom
From codes above, you can see that we use Gmail SMTP for our postfix. Next step is add our gmail’s username and password.
$ sudo vim /etc/postfix/sasl_passwd
and add this line
Then run command below to create the hash db file for Postfix.
$ sudo postmap /etc/postfix/sasl_passwd
Configure the postfix daemon
$ sudo vi /System/Library/LaunchDaemons/org.postfix.master.plist
Add these lines before
<key>RunAtLoad</key> <true/> <key>KeepAlive</key> <true/>
Start the postfix service
$ sudo postfix start
* Note that if you make changes in postfix configuration file (
/etc/postfix/main.cf), you have to run command
$ sudo postfix reload
Here is the command you need to execute to test postfix.
$ echo "Test sending email from Postfix" | mail -s "Test Postfix" firstname.lastname@example.org
If success, you will receive email in your inbox.
If you want to see mail queues, execute this command
If you want to see mail log, execute this command
$ tail -f /var/log/mail.log
Setting up mail server on Mac OSX can be done using pre-installed Postfix. Having mail server in local environment will give you advantage for your web application that have sending email feature.