Hello Janina, Believe it or not, this problem came up in the beta of both Big Sur and Catalina.
In fact, it drove me nuts in the early beta of Catalina. Believe it or not, there is, if memory serves, an easy fix for this. I think my solution was to set up the outgoing mail server, manually; as opposed to having the mac automatically configure it. This can be done but it took me quite a while to find the option. What I remember, mostly, is thinking that manually configuring the outgoing server was one of the least intuitive procedures I've ever encountered. Once I figured it out, it was simple but as I sit here, composing this reply, I have no idea how to do it. What I do remember is that you manually configure the outgoing mail server from within the Mac Mail app, itself. There is no need to delve into the Key Chain authentication system. If you cannot discover a simple fix, reply and I'll see if I can locate the solution. Mark -----Original Message----- From: 'Janina Sajka' via MacVisionaries [mailto:macvisionaries@googlegroups.com] Sent: Wednesday, December 23, 2020 1:03 PM To: macvisionaries@googlegroups.com Subject: SSL Certificate Madness (Rant) <begin rant> Yes, I need to spout off. If you don't care, stop reading! I generally hold my Macs in high regard. But, at times they're downright stupid. I have a new SSL server certificate on my rednote.net server. It is correctly setup, and Linux validation tools find it fully acceptable. Thunderbird has no problem using it. Android has no problem using it. Both of my Macs are stumped. They're still hanging on to the old certificate for dear life. If I show details, I can clearly see the old certificate. My Mac informs me it's been revoked. No kidding, Sherlock? Nor is it sufficient to delete the Internet Account / Mail identity and create a new one, because the old certificate is buried in the tangle of authentications that's in the Utilities folder, in the Keychain app. Growl. I want to bite someone's nose off. <end rant. OK, I guess I feel a bit better now, but I still have the problem. Best, Janina -- Janina Sajka https://linkedin.com/in/jsajka Linux Foundation Fellow Executive Chair, Accessibility Workgroup: http://a11y.org The World Wide Web Consortium (W3C), Web Accessibility Initiative (WAI) Co-Chair, Accessible Platform Architectures http://www.w3.org/wai/apa -- The following information is important for all members of the Mac Visionaries list. If you have any questions or concerns about the running of this list, or if you feel that a member's post is inappropriate, please contact the owners or moderators directly rather than posting on the list itself. Your Mac Visionaries list moderator is Mark Taylor. You can reach mark at: mk...@ucla.edu and your owner is Cara Quinn - you can reach Cara at caraqu...@caraquinn.com The archives for this list can be searched at: http://www.mail-archive.com/macvisionaries@googlegroups.com/ --- You received this message because you are subscribed to the Google Groups "MacVisionaries" group. To unsubscribe from this group and stop receiving emails from it, send an email to macvisionaries+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/macvisionaries/20201223210247.GA3792%40rednote.net. -- The following information is important for all members of the Mac Visionaries list. If you have any questions or concerns about the running of this list, or if you feel that a member's post is inappropriate, please contact the owners or moderators directly rather than posting on the list itself. Your Mac Visionaries list moderator is Mark Taylor. You can reach mark at: mk...@ucla.edu and your owner is Cara Quinn - you can reach Cara at caraqu...@caraquinn.com The archives for this list can be searched at: http://www.mail-archive.com/macvisionaries@googlegroups.com/ --- You received this message because you are subscribed to the Google Groups "MacVisionaries" group. To unsubscribe from this group and stop receiving emails from it, send an email to macvisionaries+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/macvisionaries/000301d6d9b8%249b795bc0%24d26c1340%24%40edu.