[Dovecot] Not getting new mail notification

[Anand Buddhdev]

Timo Sirainen wrote:

>> When you say 'the existing protocol', do you mean the
>> IDLE/ENHANCED_IDLE' protocol?
> 
> I've no idea what ENHANCED_IDLE is. Some Thunderbird-specific name for
> something? In any case there's no such protocol.

ENHANCED_IDLE is not an extension to IDLE. It's a courier-specific
enhancement to the IDLE command, and it allows several connected
clients to receive information about updates to a selected mailbox.
Clients don't need to do anything special. They just send the IDLE
command as usual, and as soon as there is a change to the folder, all
the clients that have selected that folder receive an update.