Sendmail
From KevinWiki
Known Problem
- If Linux stalls on reloading mail transport agent with the following message.
* Reloading Mail Transport Agent (MTA) sendmail
Add the domain name of the computer where the sendmail is running to /etc/hosts
file
127.0.0.1 localhost yourdomain.com
However, if you use gmail linking to your server as the email server, do not put that. Otherwise sendmail will send an email to your server instead of the gmail server.