On 30 Sep 2021 13:02:51, Quinn Comendant wrote: > I have a RoundCube server that is now unable to connect to an IMAP > server (older qmailtoaster running couriertls). The error in the > imap4-ssl log is "sslv3 alert certificate expired".
I was able to solve this by updating the `ca-certificates` package on the server running RoundCube. `ca-certificates` version 2021.2.50–72 removes DST Root CA X3. https://access.redhat.com/errata/RHBA-2021:3649 Quinn
