I did all this & it still gives the same error. I have connected with my android phone with no security with my current setup, however I still get the same error message from Dovecot.

May 22 08:54:30 ********** dovecot: imap-login: Aborted login (no auth ,attempts in 0 secs): user=<>, rip=***********, lip=***********, ,session=<***********>

I've tried to do all sorts of changes in the way that I attempt to login via Thunderbird & it gives me the same error.

Any suggestion on how to get Thunderbird to login?

On 05/22/2017 09:26 AM, Aki Tuomi wrote:
On May 22, 2017 at 4:03 PM Quark <zquar...@gmail.com> wrote:


So, I have this error now:

May 22 08:54:30 ********** dovecot: imap-login: Aborted login (no auth
attempts in 0 secs): user=<>, rip=***********, lip=***********,
session=<***********>

I found this:  https://wiki2.dovecot.org/WhyDoesItNotWork

I have this set in my dovecot.conf: disable_plaintext_auth=yes

Do you have auth_mechanisms set? That seems to indicate that the client wasn't 
happy about the provided authentication options, or you forgot to use STARTTLS 
with port 143.

Try setting auth_mechanisms = plain login and see if it helps.

Aki

Same error, even when I try to connect port 143 instead of ssl (993).
Any suggestions on what I can do now?

On 05/22/2017 02:00 AM, Aki Tuomi wrote:
On 21.05.2017 20:48, Quark wrote:
Hi, I'm new to the list (and postfix / dovecot), so if I mistakenly
omit something, then please forgive me.

I cannot log into Thunderbird via IMAP with my configuration. However,
I can check the mail of each user by logging into their user account &
then using the "mail" command.  Is there something that is wrong with
my config to not allow me to log into Thunderbird (Version 52.1.1)?
I'm using Postfix 3.1.0 if that helps.  Any help would be greatly
appreciated.  Thanks!

Please turn on

auth_debug=yes

and inspect your logs, such as /var/log/syslog or similar, and see what
you can find or alternatively post them to list (not the whole log file,
mind).

Aki

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