Certificate #1: #<OpenSSL::X509::Certificate: subject=#<OpenSSL::X509::Name CN=*.mail.google.com,O=Google LLC,L=Mountain View,ST=California,C=US>, issuer=#<OpenSSL::X509::Name CN=Google Internet Authority G3,O=Google Trust Services,C=US>, serial=#<OpenSSL::BN:0x00007f7f189ef4f0>, not_before=2019-01-29 14:59:40 UTC, not_after=2019-04-23 14:59:00 UTC>

Certificate #2: #<OpenSSL::X509::Certificate: subject=#<OpenSSL::X509::Name CN=Google Internet Authority G3,O=Google Trust Services,C=US>, issuer=#<OpenSSL::X509::Name CN=GlobalSign,O=GlobalSign,OU=GlobalSign Root CA - R2>, serial=#<OpenSSL::BN:0x00007f7f1d43dc78>, not_before=2017-06-15 00:00:42 UTC, not_after=2021-12-15 00:00:42 UTC>