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<p dir="auto">06-Jan-2026 -- 12:29 -- Sebastian Hagedorn:</p>
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<li>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?</li>
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<p dir="auto">The latter.</p>
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<p dir="auto">Thanks for confirming, that's what I expected.</p>
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<li>How does MM select the appropriate certificate? Do I have to delete the old one? Does MM only search for a valid one?</li>
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<p dir="auto">There a multiple ways. You can use Keychain Access to choose the valid one, or you can enter it into MailMate's Security.plist:</p>
<p dir="auto">{<br>
map = (<br>
{<br>
address = "<a href="mailto:xxx@test.de" style="color: #777777;">xxx@test.de</a>";<br>
serial = "25 0E 3A 33 6D 11 4C 0E A2 FD F6 AD 6A 36 A5 FB";<br>
},<br>
);<br>
}</p>
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<p dir="auto">Thanks again.</p>
<p dir="auto">I used the Keychain Access way (for reference: right-click certificate, New Identity Preference). So, this email should already use my newer certificate.</p>
<p dir="auto">One question regarding the .plist file. I see some use the format as you posted, and some are XML files. Is there any rule that format MM expects, or are both valid?</p>
</div><div id="BCCB9C62-291B-4C55-8F82-B22CBC71FF1A">--<br/>Robert M. Münch
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