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

[@lbutlr]

On 17 Aug 2020, at 05:10, Gerald Galster <list+dovecot at gcore.biz> wrote:
> I don't know how detailed this is in older Apple Mail versions

I don't think the detail has changed in many many years, if at all. I remember using the logs to troubleshoot security issues 15 years ago.

Mac OS 10.11 El Capitan was released in 2015, not 2016, but I don't think that makes any difference. El Capitan uses outdate versions of openssl (0.9.9). Sierra (10.12) and High Sierra (10.13) have an updated stack and work fine with TLSv1.2.

Because the issue is the unix level tools, this is not generally something you can work around with a third-arty client unless you find one with its own stack. Webmail would be the solution if someone refuses or is unable to update.

Any machine that is less than about 10-12 years old can update to 10.13 at no cost though.



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