Mail always marked as SPAM due to missing domain name

[microram]

This issue tracker is only for issues related to EasyEngine. Please use http://community.rtcamp.com/c/easyengine for support questions.

If you feel the issue is a EasyEngine specific issue, please attach the output of the following commands.

System Information

• [ ] ee cli info
• [ ] lsb_release -a
• [ ] docker version
• [ ] docker-compose version

[microram]

EE v4.0.9. Mail is always marked as spam. The default sender is www-data and the domain consists of the container id number pulled from the hostname.

root@ip-172-26-15-187:~# ee shell example.com
^_^[[email protected]:~/htdocs]$ php -r 'mail("[email protected]", "Hello Human", "Hello from EasyEngine!");'

spf=neutral (google.com: 1.2.3.4 is neither permitted nor denied by best guess record for domain of www-data@a9b5fb5f7611) 
smtp.mailfrom=www-data@a9b5fb5f7611
Return-Path: <www-data@a9b5fb5f7611>

[petebytes]

Interesting I have noticed a lot of email going into SPAM but have not looked into it yet. Hopefully to do so soon.