What does "push" mean for emails?

[Yossi12]

What does "push" mean for emails?
(See pic. for what I mean)

 

[kch50428]

re: What does "push" mean for emails?

It means, on email providers that support it... When an email hits the server and your mailbox, it gets pushed to the phone right away rather than the phone polling the server for new email.

 

[Yossi12]

Rather then using the fetch schedule?