220 undefined ESMTP Sendinblue SMTP 2.0
250-sendinblue_returnpath at your service, [224.252.128.184]
250-8BITMIME
250-ENHANCEDSTATUSCODES
250 STARTTLS

Certificate:
    Data:
        Version: 3 (0x2)
        Serial Number:
            47:0e:b8:04:49:c1:89:76:c5:ac:0a:34:93:4e:17:71
        Signature Algorithm: sha256WithRSAEncryption
        Issuer: C=GB, ST=Greater Manchester, L=Salford, O=Sectigo Limited, CN=Sectigo RSA Domain Validation Secure Server CA
        Validity
            Not Before: Nov 30 00:00:00 2023 GMT
            Not After : Dec 30 23:59:59 2024 GMT
        Subject: CN=*.sendinblue.com
        Subject Public Key Info:
            Public Key Algorithm: rsaEncryption
                Public-Key: (2048 bit)
                Modulus:
                    00:97:36:c3:da:4d:07:67:05:fc:e4:03:f1:50:4d:
                    92:b1:fc:bc:c3:c5:de:b3:26:fd:3b:69:0d:74:fb:
                    09:41:99:a0:39:f1:df:d9:37:e0:70:7e:b9:31:27:
                    05:23:24:78:77:68:74:ec:79:e2:a8:21:aa:1c:45:
                    2a:27:1d:d2:b3:e6:04:14:7f:91:b5:ef:0c:8c:81:
                    a2:ac:a2:e5:98:f1:ef:0f:ff:16:b5:d8:0a:44:f0:
                    86:96:75:7f:b8:5f:bd:59:b5:b6:1f:f2:31:ba:40:
                    a5:0d:81:b0:5b:a1:d0:94:ab:a7:a9:6a:97:f8:d4:
                    11:5b:67:de:dd:b0:bf:3c:92:fb:f0:22:9a:67:da:
                    5f:a4:ea:39:6e:2f:2d:91:9e:43:37:59:c7:ea:2c:
                    04:c1:16:f1:e8:a8:65:6c:2d:9d:65:b5:be:52:13:
                    0d:3c:3a:c1:2c:cc:22:dc:6a:b0:a8:5c:9b:37:7a:
                    ff:1b:cf:1a:18:5f:9f:e9:19:be:3f:fa:7e:71:34:
                    c3:fd:72:35:83:bd:4f:08:51:83:c6:79:22:a7:3c:
                    54:d4:40:d8:73:2a:6a:31:31:30:6d:80:ba:69:e9:
                    fe:4e:9c:36:c9:d7:84:37:20:69:4a:23:13:dc:e4:
                    c9:2d:80:b3:33:d5:3c:ea:de:a7:d7:75:0a:f9:fb:
                    2e:3f
                Exponent: 65537 (0x10001)
        X509v3 extensions:
            X509v3 Authority Key Identifier: 
                8D:8C:5E:C4:54:AD:8A:E1:77:E9:9B:F9:9B:05:E1:B8:01:8D:61:E1
            X509v3 Subject Key Identifier: 
                F7:64:37:10:B0:37:BA:6D:46:D3:56:CD:B5:E6:E3:6A:7A:6A:23:30
            X509v3 Key Usage: critical
                Digital Signature, Key Encipherment
            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/SectigoRSADomainValidationSecureServerCA.crt
                OCSP - URI:http://ocsp.sectigo.com
            X509v3 Subject Alternative Name: 
                DNS:*.sendinblue.com, DNS:sendinblue.com
            CT Precertificate SCTs: 
                Signed Certificate Timestamp:
                    Version   : v1 (0x0)
                    Log ID    : 76:FF:88:3F:0A:B6:FB:95:51:C2:61:CC:F5:87:BA:34:
                                B4:A4:CD:BB:29:DC:68:42:0A:9F:E6:67:4C:5A:3A:74
                    Timestamp : Nov 30 14:25:05.893 2023 GMT
                    Extensions: none
                    Signature : ecdsa-with-SHA256
                                30:45:02:20:19:EF:53:1A:4A:D0:E9:07:9F:BE:FB:69:
                                17:79:EB:9C:AD:45:79:25:91:59:C3:4C:76:80:5E:35:
                                74:65:E4:47:02:21:00:8E:CA:D5:C5:A0:94:2F:F1:C3:
                                E3:74:5B:EA:AC:06:03:02:B2:5F:9B:02:E3:32:7F:97:
                                D0:88:82:CB:2F:1D:33
                Signed Certificate Timestamp:
                    Version   : v1 (0x0)
                    Log ID    : 3F:17:4B:4F:D7:22:47:58:94:1D:65:1C:84:BE:0D:12:
                                ED:90:37:7F:1F:85:6A:EB:C1:BF:28:85:EC:F8:64:6E
                    Timestamp : Nov 30 14:25:06.008 2023 GMT
                    Extensions: none
                    Signature : ecdsa-with-SHA256
                                30:44:02:20:7F:21:71:4D:00:A1:EE:EF:78:53:6A:D2:
                                DD:A4:28:10:C3:16:DD:59:7C:F6:E8:6D:FE:4A:99:78:
                                B5:EA:70:45:02:20:2E:96:D4:E0:86:C1:5D:20:0E:27:
                                6D:19:5F:36:B8:B8:67:72:4E:E9:1F:66:1A:94:8A:3F:
                                E8:21:76:27:79:FA
                Signed Certificate Timestamp:
                    Version   : v1 (0x0)
                    Log ID    : EE:CD:D0:64:D5:DB:1A:CE:C5:5C:B7:9D:B4:CD:13:A2:
                                32:87:46:7C:BC:EC:DE:C3:51:48:59:46:71:1F:B5:9B
                    Timestamp : Nov 30 14:25:05.940 2023 GMT
                    Extensions: none
                    Signature : ecdsa-with-SHA256
                                30:46:02:21:00:D6:59:A8:7F:B2:34:DF:AA:3B:84:45:
                                24:59:56:35:53:AA:52:75:06:72:44:92:3F:25:D2:0B:
                                3B:DC:F0:DB:1B:02:21:00:87:10:87:BC:DE:0B:2A:FF:
                                65:53:30:53:F1:60:D4:36:F4:49:C0:9A:61:A7:06:B8:
                                70:5C:D4:55:DC:3F:B7:E4
    Signature Algorithm: sha256WithRSAEncryption
    Signature Value:
        12:6d:11:ba:08:c8:ea:1f:b4:9f:53:95:d4:1d:a6:04:9d:3f:
        e2:4c:95:b7:e2:5a:82:bd:b0:df:84:ea:3e:74:22:bc:28:7f:
        d9:56:6f:2d:88:63:96:65:17:94:ad:8a:e9:61:c4:8d:66:8e:
        69:ba:47:ec:7d:71:91:93:77:92:2b:6e:76:9b:2a:a3:a5:74:
        11:57:7b:89:84:8a:db:bf:74:e6:79:04:7a:e8:9e:3f:d8:91:
        8a:07:05:36:f0:6c:e0:ce:62:32:ce:f6:15:0a:f8:7e:19:43:
        a3:38:ab:72:8d:b8:14:e9:5c:4e:ad:f8:aa:e7:3d:2b:29:46:
        43:8e:9f:73:70:76:67:0b:bd:f4:4d:00:78:a1:a1:5c:63:84:
        bd:e6:8f:6a:cc:95:5f:e1:0a:1a:ee:b8:52:81:be:bf:f7:9b:
        d3:cc:b2:10:cf:9b:08:b4:12:94:de:fb:0e:f9:53:64:ce:ab:
        e8:1d:9e:12:74:61:b0:d8:3b:9e:01:23:23:e4:83:9f:44:37:
        ca:92:fe:3f:f9:bf:5d:46:8a:da:e8:cf:9a:ac:49:ba:56:af:
        3c:22:48:14:04:b7:54:fc:1e:19:fe:8f:e2:4f:b3:de:70:56:
        91:ce:ad:e9:fc:d1:a8:6f:6e:b8:88:ca:02:45:e1:04:34:84:
        f2:0e:d3:63