Apple Mail Since upgrade to dovecot 2.3.x unable to connect

[Gerald Galster]

>> You need to set
>> 
>> ssl_min_protocol = TLSv1.2 # or TLSv1
> 
> Thanks, tried both, but unsuccessfully. Again, is there any debug
> setting that allows me to see what SSL version was requested? Without
> this, this is fumbling in the dark.

In the german version of Apple Mail go to menu "Fenster" / "Verbindug prüfen".

There you can check the connection and log all transactions.

I don't know how detailed this is in older Apple Mail versions, but you could try.

READ Aug 17 13:05:32.041 [kCFStreamSocketSecurityLevelTLSv1_2] -- host:mail.server.com -- port:587 -- socket:0x600005ff1980 -- thread:0x60000e5cb340
235 2.7.0 Authentication successful


Best regards
Gerald