TCP certificate expiry checks
Updown is great for HTTPS checks - loving the cert expiry warnings, and I can also check my mailserver with the TCP checks.
I would like to also check the cert validity on a non-HTTPS ports. (i.e. IMAPS or SMTPS. I'm not asking for any understanding of the protocol for non HTTP(S) ports, just connect and do cert checks.)
I like the idea ☺