{"domain":"posta.xtsystem.it","port":443,"address":"213.152.204.104","resolved_addresses":["213.152.204.104"],"verified":true,"verification":"Certificate chain, hostname and dates verified using this server\u2019s CA store.","verification_error":null,"certificate":{"subject":{"CN":"posta.xtsystem.it"},"issuer":{"C":"US","O":"Let's Encrypt","CN":"YR2"},"serial":"069251E356DADFF968134BBB9B82E1203838","version":3,"valid_from":"2026-09-08T14:43:25+00:00","valid_to":"2026-12-07T14:43:24+00:00","validity":"valid_period","days_remaining":55,"san":"DNS:autoconfig.mailcow.hppw.it, DNS:autoconfig.pensareweb.it, DNS:autoconfig.xtsystem.it, DNS:autodiscover.mailcow.hppw.it, DNS:autodiscover.pensareweb.it, DNS:autodiscover.xtsystem.it, DNS:posta.xtsystem.it","signature":"RSA-SHA256","sha256":"FF:D1:11:AA:9E:71:77:15:42:ED:6A:69:A9:E8:7F:3F:B0:77:4E:D1:35:3D:45:86:36:A4:22:CD:9C:58:65:14","key_type":"RSA","key_bits":4096,"curve":null,"extensions":{"keyUsage":"Digital Signature, Key Encipherment","extendedKeyUsage":"TLS Web Server Authentication","basicConstraints":"CA:FALSE","subjectKeyIdentifier":"45:E2:5C:5F:26:73:D0:34:D5:93:E7:17:19:BC:7E:56:95:19:01:7D","authorityKeyIdentifier":"40:15:2D:26:79:ED:32:20:9E:DF:9A:72:1D:D6:32:1F:81:0C:81:0C","authorityInfoAccess":"CA Issuers - 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Server-presented chain; no revocation, OCSP, CT or full TLS security scan."}