Not Able To Receive Sent Emails

[hockthemblogs]

I can receive emails fine, however sent messages aren't received by the recipient. The messages are "sent successfully" by roundcube.  Can anyone help with this?

Thanks

[zakrpa]

 
any logs? did you check spam junk folder?

[hockthemblogs]

After doing a little more research into the problem, I noticed most the network settings I made are adjusted back to the default values at reboot.  It seems that this is not an email issue, and is a CentOS 6.6 problem.