DNS
SSL certificate
TLSv1.3mail.exofilter.com · 178.22.57.222:443
Certificate verification failed. These are unverified certificate details presented by the server. SSL operation failed with code 1. OpenSSL Error messages:
error:0A000086:SSL routines::certificate verify failed
Certificate verification failed
- Subject
- CN=sni-support-required-for-valid-ssl
- Issuer
- CN=sni-support-required-for-valid-ssl
- Valid from
- 2026-09-20T11:21:51+00:00
- Expires
- 2036-09-17T11:21:51+00:00
- Days remaining
- 3645
- Serial (hex)
- 0B4A7DFE2D880CC2DC5178CEA857086548B9C6DF
- Signature
- RSA-SHA256
- Public key
- RSA 2048
Subject alternative names (SAN)
No SAN extension was presented.
SHA-256 fingerprint
7A:21:35:91:85:FA:74:C3:F3:51:C0:C2:28:AB:16:15:B1:39:75:F7:AF:58:D0:B4:9D:9A:BE:FF:CE:4F:98:6F
Certificate extensions & PEM
- subjectKeyIdentifier
- 5C:92:92:A7:1C:73:4D:0E:68:81:82:C0:A4:55:88:15:CE:C7:97:CB
- authorityKeyIdentifier
- 5C:92:92:A7:1C:73:4D:0E:68:81:82:C0:A4:55:88:15:CE:C7:97:CB
- basicConstraints
- CA:TRUE
-----BEGIN CERTIFICATE----- MIIDOzCCAiOgAwIBAgIUC0p9/i2IDMLcUXjOqFcIZUi5xt8wDQYJKoZIhvcNAQEL BQAwLTErMCkGA1UEAwwic25pLXN1cHBvcnQtcmVxdWlyZWQtZm9yLXZhbGlkLXNz bDAeFw0yNjA5MjAxMTIxNTFaFw0zNjA5MTcxMTIxNTFaMC0xKzApBgNVBAMMInNu aS1zdXBwb3J0LXJlcXVpcmVkLWZvci12YWxpZC1zc2wwggEiMA0GCSqGSIb3DQEB AQUAA4IBDwAwggEKAoIBAQDhADLzDO+zWtKly2uk77uleiBUoue5NKRN+p8AnMZY J6H7BQrB8D0oDF8NXa9FNE5HFt7spyoZBW1oQw2sNxnVK/G2vAxaOJ2m1ORjFbsi 6a9dA7jVVFpghIJ1EHsW8myJrMv1bLI4NyWiZ361RVaD6BMUmAYlXOpCzmINHLqm L/xso8dOdeMuuiopCOWj0gYQfVXdFK1T+pW1FUJZCeCMX40X7P4h5aiBZpGt2S9l lOIEP6BzbvJMUG6RWlychZZt8Rec5CpvpC+NQovLIo5yoH8tgYQ3z1i4d0gPsJXZ BP2kZ0WotC32MA6N8vuQv82r6RCNjVMktxe68GchMHsnAgMBAAGjUzBRMB0GA1Ud DgQWBBRckpKnHHNNDmiBgsCkVYgVzseXyzAfBgNVHSMEGDAWgBRckpKnHHNNDmiB gsCkVYgVzseXyzAPBgNVHRMBAf8EBTADAQH/MA0GCSqGSIb3DQEBCwUAA4IBAQCG pxt/b8IjaoEfMMncq+fHFxf/WG5BnyPT8bip4lvYTw//+oHqp03ctWLeUEuzyYXv TOQxlS0nOpe5LN28NmStQatANkjVSVWkt15mKXE1kc+Lxl7Wn2njGO1C5SzBPPDk g2KLiSSAHVb63uGUhL2gaT6xsebooix/zofz9Ov4tTZCxaT1dBC94VSp5RvpgYt/ 6w3lxyZ2UAMD1Mt7CFY4OJ54mpauiJYh6nHkrFatlu8xfi6GgRuZyHAuN0MuR6CX arlUIJ+gO/G0T1a4fpJmk4eQ7MSaCpMbKDxZqmWsT+Bnal9dEgEALcs7lh31+2kr I3yN9Jo2nr6W6x45IO80 -----END CERTIFICATE-----
Cipher: TLS_AES_256_GCM_SHA384 · Checked 2026-09-24T23:37:09+00:00
One endpoint on port 443. Server-presented chain; no revocation, OCSP, CT or full TLS security scan.