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Cannot establish iCloud account in TB

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I've recently migrated to Thunderbird, from Apple Mail. I've managed to establish one email account (which runs through Google email servers) but ran into trouble when I tried to add my iCloud account. I've tried 3 times to add the same account, and it fails every time. On attempt one, I generated an app-specific password to use - however this was rejected by TB - the message being : 'unable to login at server. Probably wrong configuration, username or password" I made sure the user name was entered correctly (ie without the '' part, and checked the password was correctly entered. I also checked the port settings, server addresses etc. Please see attached file.

I also generated a new app specific password and tried that - same result. I tried the original iCloud password too - still no luck.

Please help...


Attached screenshots

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It's not straightforward, and I think it's slightly different for setting it up on Windows or OS X.


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Thanks very much for your answer. I've viewed both of those links, however neither of them seem to be any hep - as I've already done those things (2 factor authentication was already setup for my use of an alternative (and way better) calendar app called BusyCal - that too uses an app specific password - which works well. I got a new app specific password for TB - but alas, same problem. It's super frustrating that I can't get my iCloud email to work in TB - I'm currently being forced to run TB and Apple Mail simultaneously, which is very messy. It's clear that TB can be made to work with an iCloud email - but why oh why is it SO hard? I don't want to be forced back to Apple Mail - but at this stage, that's looking likely. I have Apple Mail on my iOS devices and obviously can't use TB on them - which means I'll always be across two email clients, which can't be a good thing.


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