Description of problem: $ mbsync -V redhat.com Reading configuration file /home/egolov/.mbsyncrc C: 0/4 B: 0/3 M: +0/0 *0/0 #0/0 S: +0/0 *0/0 #0/0 Channel redhat.com-default Opening master store redhat.com-remote... Resolving imap.gmail.com... ok Connecting to imap.gmail.com (173.194.76.109:993)... Opening slave store redhat.com-local... SSL error connecting imap.gmail.com (173.194.76.109:993): self signed certificate Version-Release number of selected component (if applicable): isync-1.3.0-3.fc29.x86_64 How reproducible: 100% Steps to Reproduce: 1. try to connect to imap.gmail.com with IMAPS (Host imap.gmail.com, SSLType IMAPS) Actual results: SSL error connecting imap.gmail.com (173.194.76.109:993): self signed certificate Expected results: Connection succeeds and mail gets synced Additional info: This is fixed upstream in https://sourceforge.net/p/isync/isync/ci/17babc1695e82ca80d032b79e920fcb86ede2347/, but there seems to be no new release of the 1.3 branch yet.
*** This bug has been marked as a duplicate of bug 1632958 ***