Another potential reason:
The @mac.com / @me.com IMAP servers advertise SASL PLAIN but it
doesn't actually work with a full email address (user@mac.com or
user@me.com), only works with "user".
So two possible workarounds:
- Do not use SASL PLAIN for imap.mail.me.com / mac.com
- Or strip the domain part from the login
PS - at least the above was the case 2-3 years ago when we ran into
this with our email app and had to add a workaround.
-- K
2017-05-12 22:26 GMT+03:00 Dave Warren <davew@hireahit.com>:
> Two-factor authentication, perhaps requiring an App Specific password?
>
> On Fri, May 12, 2017, at 12:14, Jeff McKay wrote:
>> Does the server imap.mail.me.com not support a standard IMAP logon with
>> a user id and password? I use port 993,
>> just a simple login command: LOGIN "username@icloud.com" "password"
>> but get back "Authentication failed". My customer claims the user name
>> and password are valid.
>>
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>> Imap-protocol@u.washington.edu
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>>
>
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