421 Too many concurrent SMTP connections; please try again later.

9.8.2rc1-RedHat-9.8.2-0.68.rc1.el6_10.8
Resolver name: s3.host.com

nginx

HTTP/1.1 301 Moved Permanently
Server: nginx
Date: Sat, 11 Jan 2025 08:07:57 GMT
Content-Type: text/html; charset=iso-8859-1
Content-Length: 228
Connection: keep-alive
Location: https://5.45.72.141/

nginx

HTTP/1.1 200 OK
Server: nginx
Date: Sat, 11 Jan 2025 08:08:01 GMT
Content-Type: text/html; charset=utf-8
Content-Length: 11
Connection: keep-alive

Certificate:
    Data:
        Version: 3 (0x2)
        Serial Number:
            04:bf:9c:31:00:cf:aa:fd:d8:c1:fe:52:79:05:d0:e5:76:8c
        Signature Algorithm: sha256WithRSAEncryption
        Issuer: C=US, O=Let's Encrypt, CN=R3
        Validity
            Not Before: Feb 12 15:19:28 2023 GMT
            Not After : May 13 15:19:27 2023 GMT
        Subject: CN=free-pet-rx-discount-card.com
        Subject Public Key Info:
            Public Key Algorithm: rsaEncryption
                Public-Key: (2048 bit)
                Modulus:
                    00:ba:a4:2f:7d:9f:f8:5c:72:ee:b6:fc:e6:ec:f0:
                    1e:4d:6e:fa:2a:15:21:8b:db:a5:5e:8c:12:b4:56:
                    b0:83:8b:ad:b1:73:1b:d6:88:91:d4:48:9b:90:9a:
                    a5:28:57:8d:af:55:b1:d9:1c:fe:4f:a5:22:f9:df:
                    29:f9:78:bd:7a:9c:9c:6d:f7:3b:19:aa:39:5b:86:
                    e0:1d:49:02:25:67:27:dc:f3:58:fc:c2:7e:1d:a9:
                    00:6d:dc:14:47:2d:3d:e3:77:2f:d5:01:18:fe:2f:
                    ee:7e:fd:84:19:7f:bc:20:c3:3c:a9:18:72:0e:4d:
                    5a:a3:9c:75:de:13:7d:0b:af:4b:0d:f4:80:21:cb:
                    3c:10:40:8f:de:9c:bd:27:6b:1d:d5:99:03:24:d7:
                    5f:b7:62:00:1d:4a:c8:db:e1:26:2b:8f:af:31:e8:
                    19:cd:30:52:bb:b2:f7:3d:90:f6:21:ac:d5:e2:2b:
                    0c:bb:e8:98:f3:b2:bb:5d:01:e5:4c:cc:51:97:36:
                    77:27:a8:5c:d0:95:c5:49:dc:a7:fb:dd:6d:27:d0:
                    da:3d:17:e9:4d:c6:70:eb:31:1c:b1:51:be:b7:b2:
                    b9:71:06:2e:b3:01:cf:48:74:10:0a:5e:02:6a:ee:
                    cd:78:2f:11:19:55:0b:ab:a5:08:1d:21:a0:82:4a:
                    4a:0d
                Exponent: 65537 (0x10001)
        X509v3 extensions:
            X509v3 Key Usage: critical
                Digital Signature, Key Encipherment
            X509v3 Extended Key Usage: 
                TLS Web Server Authentication, TLS Web Client Authentication
            X509v3 Basic Constraints: critical
                CA:FALSE
            X509v3 Subject Key Identifier: 
                3E:3F:5F:0D:C9:7F:D2:C0:DC:A6:5A:EA:CD:D4:74:00:21:F0:C3:EC
            X509v3 Authority Key Identifier: 
                14:2E:B3:17:B7:58:56:CB:AE:50:09:40:E6:1F:AF:9D:8B:14:C2:C6
            Authority Information Access: 
                OCSP - URI:http://r3.o.lencr.org
                CA Issuers - URI:http://r3.i.lencr.org/
            X509v3 Subject Alternative Name: 
                DNS:free-pet-rx-discount-card.com, DNS:www.free-pet-rx-discount-card.com
            X509v3 Certificate Policies: 
                Policy: 2.23.140.1.2.1
                Policy: 1.3.6.1.4.1.44947.1.1.1
                  CPS: http://cps.letsencrypt.org
            CT Precertificate SCTs: 
                Signed Certificate Timestamp:
                    Version   : v1 (0x0)
                    Log ID    : 7A:32:8C:54:D8:B7:2D:B6:20:EA:38:E0:52:1E:E9:84:
                                16:70:32:13:85:4D:3B:D2:2B:C1:3A:57:A3:52:EB:52
                    Timestamp : Feb 12 16:19:29.071 2023 GMT
                    Extensions: none
                    Signature : ecdsa-with-SHA256
                                30:44:02:20:69:B1:06:C4:1A:C2:AF:BF:6D:61:AC:39:
                                22:CA:B2:84:23:BA:28:CA:F5:48:58:77:6D:1F:70:A5:
                                2C:BD:67:84:02:20:1F:3B:56:40:F8:42:90:46:78:D5:
                                98:9C:FA:3F:2C:18:4A:AA:5C:64:FD:78:D5:C0:B3:8D:
                                CE:28:77:D4:4E:C8
                Signed Certificate Timestamp:
                    Version   : v1 (0x0)
                    Log ID    : E8:3E:D0:DA:3E:F5:06:35:32:E7:57:28:BC:89:6B:C9:
                                03:D3:CB:D1:11:6B:EC:EB:69:E1:77:7D:6D:06:BD:6E
                    Timestamp : Feb 12 16:19:29.055 2023 GMT
                    Extensions: none
                    Signature : ecdsa-with-SHA256
                                30:45:02:20:76:B7:87:05:C7:B6:FC:12:3C:37:36:BF:
                                73:FA:7E:DA:88:AB:A5:12:82:37:4F:0E:07:0B:DF:93:
                                0D:0E:4F:3B:02:21:00:B5:F6:71:3F:55:20:08:36:08:
                                81:0D:B7:1A:A8:0F:E0:A8:94:A2:22:F1:24:1B:65:E7:
                                B1:20:EB:F1:52:86:D8
    Signature Algorithm: sha256WithRSAEncryption
    Signature Value:
        26:21:01:bc:f7:46:2d:ee:85:cc:6d:9e:5d:2c:e8:f3:8a:c9:
        4a:b4:20:96:bf:37:60:0e:ac:f7:a7:65:a9:34:6b:c9:79:a6:
        5b:ac:f6:dc:02:7b:e0:b6:f2:ab:06:ad:9d:77:b0:43:0d:43:
        d3:a3:f1:10:6f:d6:18:eb:a6:78:b3:2b:46:44:f4:b1:30:a9:
        ad:21:ed:52:49:bc:45:df:2e:5b:b4:5e:19:76:38:dc:ee:11:
        17:ea:93:04:cc:7e:47:85:ba:06:db:8d:ca:e6:79:53:69:e4:
        d2:0f:20:ec:6a:e5:3d:cf:63:9a:28:54:e1:d5:cc:25:6e:8e:
        ad:74:8f:21:45:99:71:be:aa:16:55:63:8e:b8:9a:67:6f:7e:
        7d:eb:41:9e:73:55:eb:a2:68:cf:8c:ab:13:08:db:36:37:5e:
        6b:61:da:d5:a5:6a:ec:0c:cb:ab:60:2e:9a:1e:f3:37:77:d3:
        8b:e5:51:fc:a7:71:73:4b:14:0b:29:56:65:66:73:0d:f0:af:
        2c:bb:2f:92:76:cf:5a:22:b4:73:63:62:3c:62:25:1e:1b:02:
        30:87:dd:4a:25:4e:d4:a6:34:e9:88:31:50:28:87:03:9b:fa:
        f5:18:bf:bb:45:83:5d:d6:7b:7f:cb:ee:da:41:95:6b:74:f1:
        8f:c2:ae:0b

421 Too many concurrent SMTP connections; please try again later.\r\n