Send Receive button missing in Windows Live Mail

The fact is that the Send / Receive button has been replaced with the Sync button. Based on the mode Windows Live Mail is running in, the Sync button shows different options. When in Mail mode, it shows, Sync particular email account/s, Sync all email accounts and Sync everything.

In Newsgroup mode, you will see it performing a different set of functions. And so on for Feeds. Hope this clarifies the issue.