Postfix stops receiving emails after a few days.

[misterc1214]

Okay, first of all, I'm not very smart when it comes to emails. 

So with a fresh install of Sentora, I can receive emails just fine. The only thing I changed was my php.ini file to increase the file upload and post max size. 

I also installed SSMTP so I can have emails sent to my GoDaddy relay server because I really don't feel like pissing around to get a static IP. I'm cheap.   

Anyways, after a few days of everything working great, emails just stop being received. I push out an email through G-Mail and it comes back saying it was refused. 

Also, on the Service Status page. Everything is green, except for SMTP. However, I don't need SMTP, that's why I have SSMTP. Could that be interfering?

It's not a port issue.. The server is sitting in my DMZ at the moment. (Only there for troubleshooting). It's not DNS because this worked for a few days and I didn't touch anything in those few days of it working. Everything works again when I do a fresh install of Sentora. 

So.. Can you help me figure out what is wrong with this? I have no idea where to begin to figure this out.

Thanks guys,
Cody 

I also attached an image of a port scan on my domain name address. Everything is open that needs to be open.