[SOGo] SMIME E-Mail Encryption

[Luke Haase]

Hello Everyone

We have Sogo installed on a Debian 12 System for a customer of mine.

Now the Customer wants to send encrypted mails via the Sogo Web interface.

Installing the S/MIME certificate and sending signed emails works without an issue. Encrypting those emails hovever doesn't. Encrypting the mail doesn't even work, when replying to a encrypted mail. We always get the error: "cannot encrypt email without recipient certificate". According to the documentation sogo should automatically save the sender certificate and encrypt the mail (https://www.sogo.nu/files/docs/SOGoInstallationGuide.html#_smime_support_in_sogo)

I also can't find an option to manually add the public key to a contact.






System:

Debian 12.6

sogo-activesync/unknown,now 5.11.2.20241112-1 amd64 [installed]
sogo/unknown,now 5.11.2.20241112-1 amd64 [installed]

iRedMail 1.7.1 OPENLDAP edition.


Thanks in advance!

Regards,

Luke

I can see an error in the Sogo Log when trying to send an encrypted email: [ERROR] <0x0x55930452e7a0[UIxMailRenderingContext]> found no viewer for MIME type: application/pkcs7-signature Unfortunately I can't find a resolution online so I will give it a last try here.

smime.p7s
Description: Kryptografische S/MIME-Signatur