On Mar 1, 2018, at 09:21, NederHost/Sebastiaan Hoogeveen <[email protected]> wrote: > The 'SSL alert number 48' indicates that the server certificate cannot be > verified due to being issued by an unknown CA. This is probably caused by a > missing, outdated or improperly configured CA bundle on the machine running > Roundcube. You should be able to reproduce the problem with openssl s_client > from that machine.
It appears that roundcube doesn't like Let's Encrypt in a way that neither dovecot nor postfix (nor any of several MUAs) have an issue with -- L Butler 303 219 0564 _______________________________________________ Roundcube Users mailing list [email protected] http://lists.roundcube.net/mailman/listinfo/users
