Installation

1. Download Script

wget https://raw.githubusercontent.com/JulFoii/MailcowCertCopyScript/main/copy_mailcow_cert.sh

2. Customize variables in the file

Open the file with a text editor (nano copy_mailcow_cert.sh)
Adjust the variables according to your configuration
Save and Close the file

3. Make the script executable

chmod +x copy_mailcow_cert.sh

4. Execute the script

./copy_mailcow_cert.sh

Set up a cronjob to run the script automatically

Add the following line to the crontab Open the crontab with the command:

crontab -e

Insert the line, save and close the file

0 1 * */2 * /path/to/script/copy_mailcow_cert.sh

The script is executed with the crontab entry on the first day of every second month

You can customize the cronjob to your liking