[Dovecot] Mobile phone client detects 'PUSH' server

[Ron Leach]

Does Dovecot really provide a 'PUSH' email service?  The mobile phone 
client (standard with SonyEricsson C510, in this case) reported that 
the server (our Dovecot installation) offered PUSH email service.  I 
hadn't seen that in the documentation that I'd read and had understood 
the client-server protocol to be a client-PULL service, in that the 
clients decide which folders to retrieve, and check what messages 
there are and fetch any new messages.  The clients we've used so far 
have settings for frequency of these checks.

I didn't explore the option further, yet, being unsure whether there 
was a genuine PUSH service from our server or whether the phone was 
using a proxy somewhere (not ours) which would provide an intermediate 
fetch/aggregation/'pull then push' service of some sort - perhaps 
similar to the public offers from Yahoo etc.

regards, Ron