Currently Being ModeratedMar 10, 2012 10:36 PM (in response to steler)
A google search of this topic ("limit number of connections in apple mail") appears to indicat no solution.
That search also turned up the following unresolved thread in these forums:
Currently Being ModeratedMar 23, 2013 1:27 PM (in response to steler)
This is ridiculous. A large number of different threads have discussed this problem, going back many years and many versions of Mail; Apple has not addressed it.
These threads are respectively from 2013, 2011, 2009 (x3), and 2006! And this is not even a complete list. How many more of these threads do you need, Apple?
Meanwhile, the problem (which has affected many mail servers) now affects gmail. If Apple doesn't solve this, I will have to stop using Mail to access my gmail account -- as will many other Mac Mail users who use gmail.
Apple -- please move this "too many simultaneous connections" error to the top of your priority list. It's time to get this one fixed, at long last. All we need is a setting limiting the number of simultaneous connections per a given IMAP account.
Please address this, Apple.