Hi there, excuse me, if I' m asking at the wrong place. Apparently there is a bug in current Fetchmail (6.3.26-lp152.5.8) installed with openSUSE-Leap-15.2-1, which causes TLS to fail especially with Gmail servers: fetchmail: Server CommonName mismatch: invalid2.invalid != pop.gmail.com fetchmail: Server certificate verification error: self signed certificate fetchmail: Missing trust anchor certificate: /OU=No SNI provided; please fix your client./CN=invalid2.invalid As reported elsewhere: https://bugs.archlinux.org/task/60038 https://bugs.archlinux.org/task/60038 https://bugs.gentoo.org/697030 https://bugs.gentoo.org/697030 There is patch from RedHat which could be applied on fetchmail-6.3.26: https://bugzilla.redhat.com/show_bug.cgi?id=1611815 Other (better?) "fix" would be to bump fetchmail to 6.4.x where this issue is resolved? I could provide a complete bug report if needed. Best regards Zsolt -- Heinlein Support GmbH Schwedter Str. 8/9b, 10119 Berlin https://www.heinlein-support.de Tel: 030 / 40 50 51 - 0 Fax: 030 / 40 50 51 - 19 Amtsgericht Berlin-Charlottenburg - HRB 93818 B Geschäftsführer: Peer Heinlein - Sitz: Berlin