Hello

The way is correct, but HARICA has a seperate certificate chain for S/MIME certificates.
Therefore you need not the ones from your firefox browser.

You can download the chain from HARICA itself.
I added them as attachments, but don't know if they go through this list.
Then seperate them into single intermediate certificates, and place them into /usr/local/share/ca-certificates.
Now you can run update-ca-certificates and are done.


Kind regards,
Christian Mack

Am 28.10.25 um 13:56 schrieb Andreas Bauer ([email protected]):
Dear all,

Our university, like most in Germany, has (not so) recently changed
their certificate issuer from GEANT to Harica.  I see that there are
all sorts of Harica root and intermediate certificates included in my
browser's certificate store (firefox).

However, when I receive a mail signed with a Harica-issued
SMIME-certificate, SOGo says that the verification of said email
signature failed.  I'm guessing this is because Harica's root and
intermediate certificates are not installed.  However, I fail to see
how I can add these to SOGo.

I have tried copying them to /usr/loca/share/ca-certificates and then
run update-certificates, but to no avail.  I'm also guessing I've
missed some obvious documentation or am making a stupid mistake, but
I'm really thumped to be honest.

Any insights to this are much appreciated.

Thanks,

Andreas.

--
Christian Mack
Universität Konstanz
Kommunikations-, Informations-, Medienzentrum (KIM)
Abteilung IT-Dienste Forschung, Lehre, Infrastruktur
78457 Konstanz
+49 7531 88-4416

Attachment: HARICA-SMIME-RSA.crt
Description: application/pkix-cert

Attachment: HARICA-GEANT-SMIME-R1.crt
Description: application/pkix-cert

Attachment: HARICA-Client-Root-2021-RSA.crt
Description: application/pkix-cert

Attachment: smime.p7s
Description: Kryptografische S/MIME-Signatur

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