[Dovecot] troubles with broken clients (iPhone) - again

[Federico Bianchi]

The PC (Outlook) is accessing the mailbox via POP3, the iPhone is using 
IMAP; please consider we are talking about a user's home setup, so it's 
pretty difficult to have a more detailed report on his part (Outlook 
version, iPhone OS version, xDSL router type and configuration, etc.). The 
mail server 'dovecot -n' output is attached.

The symptoms: when the Mail application is "closed" on the iPhone, Outlook 
still says the mailbox is in use; a Dovecot imap process is still active 
for that user even after a few minutes (manually killing it releases the 
lock, thereby leaving the inbox available for Outlook).

>From the client side, there is a seemingly relevant article at

 	http://blogs.sun.com/chienr/entry/iphone_supports_imap_idle

it describes, among others, the "Settings / Mail / Auto-Check" and 
"Settings / General / Auto-Lock" parameters; from my point of view, 
however, being able to solve the problem directly on the server would be 
far better, and might also accomodate other broken clients we haven't seen 
yet: that's why I asked you whether there is a way to tell Dovecot only 
one POP3 or IMAP process from the same user, the latest one, can be active 
at the same time, closing and disconnecting all the others.

Regards, and thanks a lot again for your help

 	 		Federico Bianchi
 			Dipartimento di Storia delle Arti
 			Universita` di Pisa
 			piazza S.Matteo in Soarta, 2 - I56127 Pisa (Italy)
 			fax.+39-050-580128; e-mail: <f.bianchi at arte.unipi.it>
 			===================================================
 			!DISCLAIMER!: my e-mail reflects _my_own_ opinions!
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