How do I renew an expired SSL certificate?

You have renewed your expired certificate with your certificate provider, and a .crt file has arrived in your email. You need to import it into KMS.

1. In the KMS Administration console, look in Configuration > SSLSecure Sockets Layer - A protocol that ensures integral and secure communication between networks. Certificates. Get the certificate name of the active certificate (Example: server, server1, server2, etc.)
2. On the operating system of KMS, go to the SSL certificateSSL certificates are used to authenticate an identity on a server. folder for the mailserver. Default locations:

• Windows: C:\Program Files\Kerio\Mailserver\sslcert
• Linux: /opt/kerio/mailserver/sslcert (you must be root)
• Mac OS: /usr/local/kerio/mailserver/sslcert (you must be root)

3. Stop Kerio MailServer.
4. In this folder, you will see files with names like server.crt, server1.crt, etc. Find the name which matches the name from step 1 above. Make a backup of the .crt file with your active certificate name.
5. Copy the new crt file over it and give it the same name as the file from the previous step.
6. Start Kerio MailServer.
7. If all goes well, your certificate should now be updated.
8. If there are any problems, stop Kerio MailServer, put the original certificate back in the sslcert folder, and start Kerio MailServer. Then perform the steps to re-issue your SSL certificate.