I use offlineimap3 (https://github.com/OfflineIMAP/offlineimap3) to download email that I then read with mu4e. To make it work with my email provider I need to place a cert_fingerprint value in the .offlineimaprc configuration file. This used to change once a year, but now the value changes every 47 days (https://www.digicert.com/blog/tls-certificate-lifetimes-will...).

Has anyone figured out a solution to keep this value updated? One issue is that I'm never sure when the new TLS certificate has rolled out.