Recently, I moved my ASSP-Server (ASSP version 2.2.1(13020)) from a RHEL/Centos-Server to an Ubuntu/Xubuntu-Server in order to keep up with Perl-requirements. To querry my backup mail provider, I use POP3 Collecting. For years, I did use POP3 SSL on the centos server. After switching to Xubuntu, POP3 without SSL works fine, but POP3 with SSL fails. Of corse IO::Socket::SSL is installed (version 1.53 installed / version 1.32 required). The protocol then lists "login not successful for user ... at POP3-server ..." and there is certainly no error with the user name, the password or the server. I get the same result, when testing with an internal POP3 server containing a self signed SSL/TLS certificate for POP3 with SSL. Thus I suspect, that the issue is lack of trust in the SSL/TLS certificate. I would very much like to change this because I do not wish to send the passwords across the internet without encryption every half hour or so.
Does anyone have an indication if my guess is plausible? If so, how could I disable trust requirements versus the certificate within ASSP / Perl / Ubuntu?
Thank you very much for any response,