I was struggling to find the way to enable email notifications in Open Atrium because they just didn’t work after the install and finally I found out the way that works, no need for SMTP or any other module.
Only 2 steps:
1. Install/Enable PHPmailer.
2. Enable “Immediate” notification on the admin settings page
1. Steps to install PHPMailer
If you are using php5 then take this source and extract it inside:
and make sure you save the extracted folder name like: “PHPMailer” (case sensitive)
Go to Admin > Site building > Modules and enable “Messaging PHPMailer” module.
2. Steps to enable the notifications
Go to Admin > Messaging and Notifications > Notifications Settings and tick/enable “Immediate sending” and Save Configuration.