We have spent a lot up time installing and configuring Zimbra with valid CA certificates for both POP and SMTP. Before I upgrade I wanted to check in if the upgrade will write over the these certificates or the keystore or change the main.cf file.
Thanks
Kenny Fordham
Upgrading and certificates
Upgrading and certificates
It attempts to preserve them - but you should copy them to a safe location, and if they're not preserved, reinstall them.
Also, copy your main.cf and update the newly installed main.cf with your changes.
Also, copy your main.cf and update the newly installed main.cf with your changes.