[MlMt] TLS 1.3 supported?

[Benny Kjær Nielsen]

On 10 Jan 2025, at 16:04, Frederik Schwan via mailmate wrote:

> So I digged a bit into this, and it seems that only the higher level abstraction as NSURLSession, which is essentially a shortcut for the Foundation URL Loading System [0],
> has TLS1.3 support. The lower layers, such as NSStream, CFHTTPStream and CFSocketStream don't support TLS 1.3.
> I don't know the mailmate sources, but maybe this information helps you a bit.

It does, but it also means MailMate does not support TLS 1.3 (or Apple doesn't via CFNetwork).

>> Ideally, MailMate should switch to Apple's Network framework, but that requires macOS 10.14+ (MailMate is still 10.12+). Yes, “maintaining” software often requires completely replacing existing code because of system changes :)
>
> Well, that's a lot of work :/

Yes. (I will have to do it eventually -- I suspect it might not be the only problem related to CFNetwork.)

-- 
Benny