How to Install an SSL Certificate on Zimbra
This guide shows you how to install an SSL certificate on Zimbra, a popular email server and web client. You can do it two ways: through the Zimbra Admin Console or from the command line with zmcertmgr.
Author: Sergiu Rosca
Tutorials reviewed by Sergiu Rosca
How to Install an SSL Certificate on SurgeMail
This tutorial shows you how to install an SSL certificate on SurgeMail, the Netwin mail server that handles SMTP, IMAP, POP3, and webmail in one daemon. You will paste the issued certificate and its intermediate chain into the SurgeMail web admin, restart the service, and verify that every secure port (submission, SMTPS, IMAPS, POP3S, and […]
How to Install an SSL Certificate on Qmail
This tutorial shows you how to install an SSL/TLS certificate on Qmail, the mail transfer agent originally written by D. J. Bernstein. The process is the same one Qmail has used for years: build a single PEM file that contains the private key, your server certificate, and the intermediate chain, drop it at /var/qmail/control/servercert.pem, and […]
How to Install an SSL Certificate on Proxmox
This tutorial shows you how to install an SSL certificate on Proxmox Virtual Environment (Proxmox VE) so the web interface is served over trusted HTTPS instead of the default self-signed certificate. You will also find the best place to buy an affordable SSL certificate for Proxmox.
How to Install an SSL Certificate on Postfix
In this tutorial, you will learn how to install an SSL/TLS certificate on Postfix, the popular Linux mail transfer agent.
How to Install an SSL Certificate on Kerio Connect
In this tutorial, you will learn how to install an SSL certificate on Kerio Connect, importing your signed certificate in the administration console and then setting it as the default certificate for the mail server.
How to Install an SSL Certificate on Courier IMAP Server
In this tutorial, you will learn how to install an SSL certificate on a Courier IMAP server. You combine your certificate, private key, and CA chain into a single PEM file, point Courier’s TLS_CERTFILE setting at it, and restart the service so IMAPS and POP3S serve the new certificate.
How to Install an SSL Certificate on a Nutanix Cluster
In this tutorial, you will learn how to install an SSL certificate on a Nutanix cluster through the Prism web interface, both Prism Element (a single cluster) and Prism Central (multi-cluster management).
How to Install an SSL Certificate on IBM Cloud
This tutorial explains how to install an SSL certificate on IBM Cloud. IBM Cloud has two infrastructure types, and each handles certificates differently: VPC (Virtual Private Cloud) stores the certificate in Secrets Manager and attaches it to a load balancer, while Classic infrastructure keeps its own SSL certificate store. You will also learn how to […]
How to Install an SSL Certificate on Heroku
This guide shows you how to install an SSL certificate on Heroku. It covers both ways Heroku terminates TLS today: Automated Certificate Management (ACM), which provisions and renews free Let’s Encrypt certificates for you, and manual upload of a third-party certificate via the dashboard or the Heroku CLI.