Will we only get a e-mail or will we get a message in our Inbox
Your question is not clear. Emails are sent for communicating items such as NDA. Discord @ messages are used in official channels for alerts and announcements. Key winners for the Alpha 0 key drawings are announced both in the discord server as well as here in the forums. Those forums announcements are typically done with the profile winner tagged.
We do not use the messaging system here on the forums for this type of purpose. Please let Shunex or I know if you have further questions.