setting up sendmail in EC2

Somehow I noticed that our Drupal wasn’t sending email notifications as it was supposed to. We just migrated a CMS to one of our EC2 instances. I figured that Drupal was using sendmail, as I couldn’t find any SMTP configuration in the administration section.

First of all, I checked if sendmail was running:

ps -aux | grep sendmail

That showed me that it wasn’t running.

Then I started it as root:

/usr/sbin/sendmail -bd -q20m

Then I added our domain name to the list of local host names at /etc/mail/local-host-names

Also, I configured submit.cf to use our domain: aycron.com – You can find submit.cf at /etc/mail/submit.cf and modify it to look like this:

# my official domain name
# … define this only if sendmail cannot automatically determine your domain
#Dj$w.Foo.COM
Dj$w.aycron.com

Finally, I tested that sendmail was working:

[etagwerker@dev-001 ~]$ /usr/sbin/sendmail -F”Ernesto Tagwerker” etagwerker@aycron.com
Hello, this is a test. 1. 2. 3. Testing.
Bye.
.

This totally worked!