As I was working on implementing email (sendmail) in symfony2, I stumbled upon an annoying issue with emails not being sent on my local machine using Mail() with MAMP. I didn't have this issue prior to upgrading to Mac OS X Mountain Lion so if you're on a version of OSX older than Mountain Lion, you might be okay. I should probably say that I'm not by any means an expert on the subject. This solution came upon trial and error so hopefully this will help you save sometime if you're dealing with this issue. It seems to be a common issue since Mountain Lion came out, and that's why I decided to write about it.
Mountain Lion uses sendmail as an alias for postfix (not sure why) so you need to configure postfix instead of sendmail. You'll need to alter 3 files in your local machine to enable mailserver and postfix. You can follow this step-by-step process here. The files are:
/etc/hostconfig /etc/postfix/main.cf php.ini (since I'm using MAMP, this is located here /Applications/MAMP/conf/php5.4.4/php.ini)
I followed the step-by-step tutorial above and I couldn't still send email with Mail() successfully. After inspecting the mail log (tail -f /var/log/mail.log), I was able to see that postfix wasn't working and I was getting an error mainly because I didn't have the directories postfix was looking for. You can create the directories by running this command at your terminal.
<span class="attr-name">sudo mkdir -p /Library/Server/Mail/Data/spool</span> <span class="attr-name">sudo /usr/sbin/postfix set-permissions</span> <span class="attr-name">sudo /usr/sbin/postfix start</span>
You may (or may not) see some errors after running these commands but postfix should be working now. I hope this saves you hours of work!
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