On 6 Jan 2026, at 11:38, Robert M. Münch wrote: > Hi, I'm using S/MIME to sign/encrypt my emails. The current certificate has > now expired, so I got a new one. > > 1. How does MM handle old emails sent to me? Are those decrypted on receive > and then stored unencrypted? Does MM need to have access to the expired > certificate?
The latter.
> 2. How does MM select the appropriate certificate? Do I have to delete the
> old one? Does MM only search for a valid one?
There a multiple ways. You can use Keychain Access to choose the valid one, or
you can enter it into MailMate's Security.plist:
{
map = (
{
address = "[email protected]";
serial = "25 0E 3A 33 6D 11 4C 0E A2 FD F6 AD 6A 36 A5
FB";
},
);
}
Cheers,
Sebastian
--
.:.Sebastian Hagedorn - Weyertal 121 (Gebäude 133), Zimmer 2.13.:.
.:.IT Center University of Cologne (ITCC).:.
.:.Universität zu Köln / Cologne University - ✆ +49-221-470-89578.:.
.:. SIP/Webex [email protected] .:.
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