In Beta11 S/Mime does not seem to work.
If I import my private certificate all the encrypted messages in the mailbox stay encrypted.
EMClient does not seem to recognize the encryption, the mail is shown empty with an “smime.p7m” attachment
Hello,
do you use MS Graph protocol? If so, there is a known bug when SMIME and MS Graph is used together. We have that already fixed and it will be available with the next beta.
Yes, MS Graph.
Ok, so i wait for the next beta. Thanks.
I updated my client to the latest 11.0.865 - still broken
Please try Repair on that folder (context menu for that folder → Properties → Repair).
yes - that worked 
encrypted mails are recognized and decrypted now - thanks!