Thank you!
Killing the imapd processes wasn't the solution, but the problem is the that indeed!
I use a e-mail client called 'Sparrow' on my Mac.
When I closed it, it also worked for me
Every time I tried it I had this application opened...
I experimentate a bit to find out if I can still use this application, without my website malfunctioning.
Again, thanks, a solution has been found
edit: Linked Google Apps, and it works now