Thread:Sannse/@comment-26499804-20180410050603/@comment-8-20180410211327

If you use the forms at Special:Contact (for example the main one at Special:Contact/general) Then you would get a reply to your email address. So you need to fix your email in your preferences before using that method

For message wall messages, like this one, you will get an email telling you that you have a message, and a number in the speach bubble.

The special:contact method is for when you want to talk to staff privately :)