[imp] IMP ajax poll

Sat Apr 25 19:03:27 UTC 2015

I'm getting access to ajax.php/imp/poll by the minute on my logs, which 
causes an IMAP login/logout, whenever the user is in the browser with 
IMP opened.

177.32.95.58 - - [25/Apr/2015:15:55:43 -0300] "POST 
/horde/services/ajax.php/imp/poll HTTP/1.1" 200 482 ...

177.32.95.58 - - [25/Apr/2015:15:56:45 -0300] "POST 
/horde/services/ajax.php/imp/poll HTTP/1.1" 200 482 ...

177.32.95.58 - - [25/Apr/2015:15:57:45 -0300] "POST 
/horde/services/ajax.php/imp/poll HTTP/1.1" 200 482 ...

Is it intended? Is it possible to configure this?

Thanks.