G gruler macrumors newbie Original poster Apr 6, 2017 #1 Anybody else having an issue with using 3rd party email apps on OS X using iCloud and imap?? Works fine using Mac Mail program, but will not verify when trying to use Thunderbird or PostBox.... Just started this morning.
Anybody else having an issue with using 3rd party email apps on OS X using iCloud and imap?? Works fine using Mac Mail program, but will not verify when trying to use Thunderbird or PostBox.... Just started this morning.