SSL Certificate Importing to Clients

You may import either the server's self-signed certificate or the CA certificate (see certificate_creation).

Windows 11

See https://learn.microsoft.com/en-us/dotnet/framework/wcf/feature-details/working-with-certificates

Mac OS X

• Doubleclick the certificate

• Keychain should open

• Add the certificate to X509 Anchors keychain

Apple Mail uses the OS X's certificate store.

Thunderbird

Preferences -> Privacy -> Security -> View Certificates -> Authorities -> Import -> Trust this CA to identify email users.

Opera Mail

Preferences -> Advanced > Security > Certificates > Import certificate file.

Evolution

Preferences -> Certificates -> Authorities -> Import -> Trust this CA to identify email users.

Mutt

See https://gitlab.com/muttmua/mutt/-/wikis/MuttGuide/UseIMAP

Pine

http://www.madboa.com/geek/pine-ssl/ tells a story how to do this. Basically it seems to be:

1. Find out your OPENSSLDIR: openssl version -d

2. Get a hash of your certificate: openssl x509 -in cert.pem -hash -noout

3. Copy the certificate to $OPENSSLDIR/certs/$hash.0

This probably works only for self-signed certificates.

KMail

See https://docs.kde.org/stable5/en/kmail/kmail2/manual-configuration-quickstart.html

Claws Mail

Configuration -> Edit accounts (Choose here your's one and press 'Edit'-button)

Account -> SSL -> Certificate for receiving->Browse