[Error Message] [NEED HELP FAST] Mybb 502 bad gateway

[Wiggle]

So I was trying to fix my activation email issue where the emails would show up as spam. I turned the last option on the PHP mail settings to "no" and now I keep getting a 502 bad gateway error. How do I fix this?
http://virtuallyvain.com/

[Nathan Malcolm]

It's a server error, you need to contact your web host.

[Wiggle]

Are you 100% sure its a server issue? Nothing caused by me?

[Arbaz]

Are you 100% sure its a server issue? Nothing caused by me?

http://pcsupport.about.com/od/findbyerro...2error.htm
And
http://answers.yahoo.com/question/index?...856AAWFsKH

[Wiggle]

It's kind of weird that it happened right after I edited a setting though..

I switched something on PHP mail to "no" or "off"

I forgot what it was. It said it might resolve emails being sent to spam

[Nathan Malcolm]

Are you 100% sure its a server issue? Nothing caused by me?

I run NGINX on my servers and the only time I've encountered it is when the backend server (Apache, HHVM, etc.) isn't running or cannot be connected to.

[Wiggle]

Are you 100% sure its a server issue? Nothing caused by me?

I run NGINX on my servers and the only time I've encountered it is when the backend server (Apache, HHVM, etc.) isn't running or cannot be connected to.

Well like I said above,

"It's kind of weird that it happened right after I edited a setting though..

I switched something on PHP mail to "no" or "off"

I forgot what it was. It said it might resolve emails being sent to spam"

Could this of olive anything up

[Arbaz]

Are you 100% sure its a server issue? Nothing caused by me?

I run NGINX on my servers and the only time I've encountered it is when the backend server (Apache, HHVM, etc.) isn't running or cannot be connected to.

Well like I said above,

"It's kind of weird that it happened right after I edited a setting though..

I switched something on PHP mail to "no" or "off"

I forgot what it was. It said it might resolve emails being sent to spam"

Could this of olive anything up

What Nathan is trying to say is that it's a server issue. It has nothing to do with your MyBB settings so the changes you did to you mail handler most likely has nothing to do with this but once again you have to contact your host.

[spork985]

Are you using any kind of DDOS protection or Cloud Flare? These all uses reverse proxies and will generate a 502 error when the web server is down and the reverse proxy (NGINX) can't connect.