![]() You should be able to read up on your particular mailserver’s guide for setting up TLS we’ve included some examples for popular email software below. Point your mailserver configuration files at these filepaths. Where is the hostname for your mailserver for instance,. Once you’re done, your certificate and associated private key will be stored at: /etc/letsencrypt/live//fullchain.pem There's more information about these renewal hooks in Certbot's documentation. You can do this by adding the following to /etc/letsencrypt/cli.ini: pre-hook = ![]() If you've got a firewall blocking port 80 on your machine, you'll have to punch a port-80-shaped hole for the duration of Certbot's challenge. Make sure to also follow through the Automating renewal section, and set up a regular cronjob, systemd timer, or equivalent on your system to run certbot renew regularly.Then, you’ll want to follow the instructions for running Certbot with the -standalone flag with your mailserver's hostname as the domain flag.In the system selector, choose the closest match to the operating system where you’re running the mailserver. ![]()
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