This is most likely caused by google sending invalid certificates if you talk TLS 1.3 but don't send the SNI extention. See https://wiki.openssl.org/index.php/TLS1.3#Server_Name_Indication
- Bug#907491: goobook fails to authenticate Sergio Mendoza
- Bug#907491: goobook fails to authenticate Kurt Roeckx
- Bug#907491: goobook fails to authenticate Kurt Roeckx
- Bug#907491: goobook fails to authenticate Sergio Mendoza
- Bug#907491: marked as done (goobook fails ... Debian Bug Tracking System
- Bug#907491: closed by Paul Gevers <elb.... Sergio Mendoza
- Bug#907491: closed by Paul Gevers <... Ilias Tsitsimpis
- Bug#907491: closed by Paul Gevers ... Sergio Mendoza
- Bug#907491: closed by Paul Gev... Ilias Tsitsimpis
- Bug#907491: closed by Pau... tony mancill
- Bug#907491: closed by Pau... Sergio Mendoza