I updated WLM and I'm currently running Windows Live Mail Version 2012 (Build 16.4.3564.1216) on Windows 7 (no, I will not update to Windows 10 - my issue is the lack of WMC).

I have an interesting situation and I think maybe I found a solution that could help someone else.  

This new version has been working just fine for me, sending and receiving all of my POP3 mail accounts (gmail, personal server, etc), with one interesting exception:  it will not receive/download any mail from accounts @outlook.com.

I removed and reinstalled my outlook mail accounts several times.  It would work once and then not collect my mail.   I tried something yesterday that seems to have worked (fingers crossed that it will still work in a week).   I didn't allow WLM to automatically configure the mail server.  I did it manually.  For two days now, I've been getting my mail.

I used these settings for POP3:

Incoming mail:  pop3.live.com

Port: 995

Outgoing Mail:  smtp.live.com

Port: 25

Checked "My  server requires authentication"

Checked "This server requires a secure connection (SSL)"

As I said, I hope this continues to work.  It's working right now.  Maybe it can help someone else.

PS - when I let WLM set up an account automatically, it uses this as the server:

http://mail.services.live.com/DeltaSync_v2.0.0/sync.aspx