Postfix smtpd

220-mailc.bravenet.com ESMTP Postfix
250-mailc.bravenet.com
250-SIZE 62914560
250-VRFY
250-ETRN
250-STARTTLS
250-ENHANCEDSTATUSCODES
250-8BITMIME
250-DSN
250 CHUNKING

Certificate:
    Data:
        Version: 3 (0x2)
        Serial Number:
            5d:57:c2:ff:d1:fb:38:89:a5:44:55:3b:32:f3:85:77
        Signature Algorithm: ecdsa-with-SHA256
        Issuer: C=GB, ST=Greater Manchester, L=Salford, O=Sectigo Limited, CN=Sectigo ECC Domain Validation Secure Server CA
        Validity
            Not Before: Apr 17 00:00:00 2024 GMT
            Not After : May 10 23:59:59 2025 GMT
        Subject: CN=*.bravenet.com
        Subject Public Key Info:
            Public Key Algorithm: id-ecPublicKey
                Public-Key: (256 bit)
                pub:
                    04:b5:0d:14:61:e7:67:1a:3a:8b:25:1f:30:70:3f:
                    41:07:62:76:3d:06:0b:9b:4c:8f:02:0b:99:3d:4b:
                    0a:2c:4c:93:9f:b0:84:53:5e:fb:5b:9e:e7:20:c6:
                    5a:f8:60:5c:57:70:2c:3d:de:ce:0d:94:62:5d:ce:
                    92:70:7e:57:d9
                ASN1 OID: prime256v1
                NIST CURVE: P-256
        X509v3 extensions:
            X509v3 Authority Key Identifier: 
                F6:85:0A:3B:11:86:E1:04:7D:0E:AA:0B:2C:D2:EE:CC:64:7B:7B:AE
            X509v3 Subject Key Identifier: 
                59:36:D5:9F:4A:DE:62:D1:3E:66:AB:56:81:2C:28:CE:A3:BF:35:64
            X509v3 Key Usage: critical
                Digital Signature
            X509v3 Basic Constraints: critical
                CA:FALSE
            X509v3 Extended Key Usage: 
                TLS Web Server Authentication, TLS Web Client Authentication
            X509v3 Certificate Policies: 
                Policy: 1.3.6.1.4.1.6449.1.2.2.7
                  CPS: https://sectigo.com/CPS
                Policy: 2.23.140.1.2.1
            Authority Information Access: 
                CA Issuers - URI:http://crt.sectigo.com/SectigoECCDomainValidationSecureServerCA.crt
                OCSP - URI:http://ocsp.sectigo.com
            X509v3 Subject Alternative Name: 
                DNS:*.bravenet.com, DNS:bravenet.com
            CT Precertificate SCTs: 
                Signed Certificate Timestamp:
                    Version   : v1 (0x0)
                    Log ID    : CF:11:56:EE:D5:2E:7C:AF:F3:87:5B:D9:69:2E:9B:E9:
                                1A:71:67:4A:B0:17:EC:AC:01:D2:5B:77:CE:CC:3B:08
                    Timestamp : Apr 17 23:10:51.525 2024 GMT
                    Extensions: none
                    Signature : ecdsa-with-SHA256
                                30:46:02:21:00:D9:90:1E:04:CC:C6:0B:4C:85:C1:16:
                                D6:35:40:0E:1A:0E:91:45:BF:81:E7:8C:D4:50:94:4A:
                                A1:CC:C2:E4:42:02:21:00:85:BC:E0:7D:F9:86:41:C9:
                                20:20:0A:46:06:E4:AE:F0:43:05:E8:96:01:53:9C:2B:
                                F5:C5:CB:77:96:A5:CF:6A
                Signed Certificate Timestamp:
                    Version   : v1 (0x0)
                    Log ID    : A2:E3:0A:E4:45:EF:BD:AD:9B:7E:38:ED:47:67:77:53:
                                D7:82:5B:84:94:D7:2B:5E:1B:2C:C4:B9:50:A4:47:E7
                    Timestamp : Apr 17 23:10:51.481 2024 GMT
                    Extensions: none
                    Signature : ecdsa-with-SHA256
                                30:46:02:21:00:E7:3A:6B:5D:3D:3D:02:F0:DF:CF:57:
                                57:65:A1:8D:AF:26:DD:B2:6C:0E:31:2F:57:1F:CA:E4:
                                9A:F6:9E:C4:70:02:21:00:F5:97:FB:5B:29:E3:66:72:
                                0B:6F:8F:3D:50:42:C6:3B:80:5C:66:D9:B9:6D:EE:9E:
                                C3:0F:82:B5:53:15:2F:48
                Signed Certificate Timestamp:
                    Version   : v1 (0x0)
                    Log ID    : 4E:75:A3:27:5C:9A:10:C3:38:5B:6C:D4:DF:3F:52:EB:
                                1D:F0:E0:8E:1B:8D:69:C0:B1:FA:64:B1:62:9A:39:DF
                    Timestamp : Apr 17 23:10:51.418 2024 GMT
                    Extensions: none
                    Signature : ecdsa-with-SHA256
                                30:46:02:21:00:BA:A7:40:69:A5:06:60:3E:AB:F2:35:
                                10:B8:C3:54:6E:56:30:CE:7E:36:D1:86:22:CC:AA:94:
                                D7:76:E0:99:73:02:21:00:DF:90:CA:CF:86:5D:BA:D3:
                                E0:BA:32:A9:D9:64:8D:9C:7A:88:32:41:7E:AF:A1:85:
                                07:C3:E2:63:70:EA:78:57
    Signature Algorithm: ecdsa-with-SHA256
    Signature Value:
        30:44:02:20:2a:37:a4:3d:d1:eb:55:ce:d4:2c:f7:2f:da:70:
        62:eb:25:c6:43:83:68:83:6c:1d:1a:69:48:b9:2b:53:56:e5:
        02:20:6c:d3:36:51:38:b8:73:48:22:b5:6a:99:c5:a8:b4:25:
        5b:82:d5:ce:54:f3:04:94:09:65:ba:56:4c:54:21:4c