Postfix smtpd

220 mx02.nmmn.com ESMTP Postfix (Debian/GNU)
250-mx02.nmmn.com
250-PIPELINING
250-SIZE 307200000
250-ETRN
250-STARTTLS
250-ENHANCEDSTATUSCODES
250-8BITMIME
250-DSN
250 CHUNKING

Certificate:
    Data:
        Version: 3 (0x2)
        Serial Number:
            62:8a:48:fe:ac:cb:2b:1a:50:94:54:79:70:12:95:db
        Signature Algorithm: sha256WithRSAEncryption
        Issuer: C=DE, O=United SSL Deutschland GmbH, CN=United Trust
        Validity
            Not Before: Sep 26 10:58:11 2024 GMT
            Not After : Oct 26 10:58:10 2025 GMT
        Subject: C=DE, ST=Hamburg, L=Hamburg, O=NMMN New Media Markets & Networks IT-Services GmbH, CN=*.nmmn.com
        Subject Public Key Info:
            Public Key Algorithm: rsaEncryption
                Public-Key: (2048 bit)
                Modulus:
                    00:b9:53:c5:41:19:1c:87:b5:2a:ee:7a:fa:e3:e9:
                    49:a6:b2:7f:63:71:92:e9:87:31:09:48:e0:22:f0:
                    5b:32:39:7a:13:4e:60:1d:03:19:d4:3d:73:48:81:
                    b5:12:92:17:5d:65:51:da:5a:51:2c:10:2a:26:97:
                    d2:04:b6:6f:79:4a:ec:87:72:49:cf:15:2a:4f:ab:
                    aa:1a:2e:82:c2:cf:c5:f1:8d:44:8b:40:db:b3:b1:
                    53:9e:9d:fa:1f:3a:9f:90:1f:da:5b:07:4f:9b:d5:
                    f7:f7:76:9d:20:89:f6:94:db:86:da:4b:20:1b:6e:
                    0b:81:80:a9:0f:24:a3:fd:b5:6e:c3:15:44:7f:50:
                    17:26:82:3f:5e:71:cf:b5:7c:62:32:84:3f:47:4a:
                    f7:65:94:25:1d:67:d3:e0:0f:69:4c:e2:3b:9a:b3:
                    30:4e:85:7e:9e:bd:35:e5:7d:b7:8d:d6:e4:ee:41:
                    33:20:cd:29:34:f9:fa:f7:b1:3e:e4:ca:0c:b7:12:
                    a3:fa:57:ed:c6:4e:5e:52:ac:27:a6:0a:19:81:ab:
                    25:5a:7b:32:a2:69:a9:91:4a:0d:00:3e:52:2a:f7:
                    2f:49:5d:7b:d8:b5:e6:11:b8:68:0f:b9:7e:16:f8:
                    f8:59:b2:13:4c:33:9e:9d:b4:17:0c:a0:a0:37:26:
                    87:03
                Exponent: 65537 (0x10001)
        X509v3 extensions:
            X509v3 Basic Constraints: critical
                CA:FALSE
            X509v3 CRL Distribution Points: 
                Full Name:
                  URI:http://unitedtrustov.crl.certum.pl/unitedtrustov.crl
            Authority Information Access: 
                OCSP - URI:http://unitedtrustov.ocsp-certum.com
                CA Issuers - URI:http://repository.certum.pl/unitedtrustov.cer
            X509v3 Authority Key Identifier: 
                EE:77:78:BA:00:1D:F3:D8:9C:92:90:6D:BA:92:E5:22:B7:53:42:99
            X509v3 Subject Key Identifier: 
                33:46:D7:E9:BC:B8:12:18:E8:61:56:BD:7A:9C:1F:9A:71:CE:AA:4D
            X509v3 Certificate Policies: 
                Policy: 2.23.140.1.2.2
                Policy: 1.2.616.1.113527.2.5.1.9.41.2
                  CPS: https://www.certum.pl/CPS
            X509v3 Extended Key Usage: 
                TLS Web Server Authentication, TLS Web Client Authentication
            X509v3 Key Usage: critical
                Digital Signature, Key Encipherment
            X509v3 Subject Alternative Name: 
                DNS:*.nmmn.com, DNS:nmmn.com
            CT Precertificate SCTs: 
                Signed Certificate Timestamp:
                    Version   : v1 (0x0)
                    Log ID    : 0D:E1:F2:30:2B:D3:0D:C1:40:62:12:09:EA:55:2E:FC:
                                47:74:7C:B1:D7:E9:30:EF:0E:42:1E:B4:7E:4E:AA:34
                    Timestamp : Sep 26 10:58:12.905 2024 GMT
                    Extensions: none
                    Signature : ecdsa-with-SHA256
                                30:45:02:21:00:FF:CC:1D:AA:4F:1D:96:AD:D5:DC:39:
                                42:87:08:29:0A:E5:A1:48:55:7D:52:1F:8D:E4:66:1A:
                                5A:77:8D:27:38:02:20:1D:1C:69:99:F3:61:AA:35:00:
                                98:EA:5D:9B:60:C3:DF:8A:2E:ED:2E:95:22:84:F5:E5:
                                36:76:AE:43:B0:B1:6C
                Signed Certificate Timestamp:
                    Version   : v1 (0x0)
                    Log ID    : DD:DC:CA:34:95:D7:E1:16:05:E7:95:32:FA:C7:9F:F8:
                                3D:1C:50:DF:DB:00:3A:14:12:76:0A:2C:AC:BB:C8:2A
                    Timestamp : Sep 26 10:58:12.853 2024 GMT
                    Extensions: none
                    Signature : ecdsa-with-SHA256
                                30:46:02:21:00:D0:00:4C:AE:6D:81:6C:FC:AB:5D:4B:
                                CA:76:6E:66:D2:04:8D:7E:89:3C:5E:51:09:DF:44:73:
                                26:40:4C:A9:0D:02:21:00:90:44:37:44:79:F4:35:16:
                                7B:29:C8:B3:26:A8:C3:28:62:47:56:13:F7:E9:1C:E4:
                                FA:35:04:74:6C:2D:9C:CE
                Signed Certificate Timestamp:
                    Version   : v1 (0x0)
                    Log ID    : 7D:59:1E:12:E1:78:2A:7B:1C:61:67:7C:5E:FD:F8:D0:
                                87:5C:14:A0:4E:95:9E:B9:03:2F:D9:0E:8C:2E:79:B8
                    Timestamp : Sep 26 10:58:12.935 2024 GMT
                    Extensions: none
                    Signature : ecdsa-with-SHA256
                                30:44:02:20:7D:58:E6:0E:29:56:0E:9B:FB:61:A3:04:
                                05:A2:C0:51:E1:40:48:6A:89:35:E9:13:D1:C1:49:E3:
                                D5:D3:29:7B:02:20:23:7D:68:98:CD:6B:58:27:C1:86:
                                41:8B:C1:48:FE:C5:94:0C:0F:04:C4:80:A9:70:B0:2D:
                                78:C0:A1:70:61:55
    Signature Algorithm: sha256WithRSAEncryption
    Signature Value:
        26:33:3d:f3:ff:9d:bf:76:64:a1:f1:4c:63:e5:f7:35:b8:f5:
        e1:f9:00:15:e8:37:ba:f1:f6:2e:a2:88:3c:e5:2a:bc:00:75:
        3c:2c:23:20:36:1b:1b:e7:4d:7c:4d:ec:18:1c:c7:39:d8:9a:
        e9:7a:db:f4:05:75:6e:89:5e:be:24:80:58:9a:56:1d:10:77:
        07:94:0f:0d:d7:76:63:5a:3c:73:3c:2e:fe:e9:6c:be:fe:a0:
        53:37:54:56:5d:47:68:c3:e6:81:15:99:02:10:ef:ed:f0:b4:
        ed:48:44:a8:d3:13:b2:2f:89:ec:b8:14:cd:10:63:33:25:10:
        87:af:20:26:64:52:2d:05:b9:44:4f:a9:d2:ea:d7:44:6b:d5:
        a3:fe:5a:55:ad:f0:5f:3e:84:07:06:4b:e1:a6:ec:55:7d:67:
        a6:fc:3c:a0:8b:6b:05:4b:5e:51:ab:00:2a:ec:95:87:e8:77:
        b1:ad:06:7f:ab:9f:04:7a:7a:9a:66:d5:d6:0e:01:6d:b9:1d:
        74:08:e7:42:75:5f:cb:f3:b3:ac:2e:52:d3:5d:70:e1:01:c9:
        87:89:7b:f4:7c:4f:42:7f:eb:e0:94:e8:27:7c:1b:c6:2b:68:
        4e:33:5a:aa:33:57:45:3b:ec:86:e1:8d:c5:41:2b:92:fd:5e:
        7d:d8:c3:88