On: Why do self-respecting hackers use Gmail & Co?

[dangrossman]

I use Rackspace Email, over IMAP on the desktop, IMAP on my phone, and webmail when on someone else's computer. It's never slow in any way. When I sign up for things, I hear the ding of the confirmation e-mail within 2-3 seconds of submitting the form -- fast as push mail.

[sdkmvx → dangrossman]

It's using IMAP IDLE (https://en.wikipedia.org/wiki/IMAP_IDLE), which is push email.