http://mail.google.com/support/bin/answer.py?answer=13287



Gmail only does *pop3/ssl* on port 995.

Have you tested via test.php?

Horde IMP must have some problems with pop3/tls protocol. I can easily 
set up thunderbird to retieve GMail with the settings I posted. Could 
you test it? I plan to retrieve gmail to IMP, if it works.

So... wouldn't this be an issue with GMail?  or else you have not 
provided enough information to remotely allow us to investigate.

When connecting to gmail, the system stopped. The setting is as following:





$servers['gmail'] = array(

     'name' => 'Gmail',

     'server' => 'pop.gmail.com',

     'hordeauth' => false,

     'protocol' => 'pop3/tls',

     'port' => 995,

     'maildomain' => 'gmail.com',

     'realm' => '',

     'preferred' => ''

);