Postfix smtpd

220 kh-n-lb1.isprime.com ESMTP Postfix (Ubuntu)
250-kh-n-lb1.isprime.com
250-PIPELINING
250-SIZE 10240000
250-VRFY
250-ETRN
250-STARTTLS
250-ENHANCEDSTATUSCODES
250-8BITMIME
250-DSN
250 SMTPUTF8

Certificate:
    Data:
        Version: 3 (0x2)
        Serial Number:
            05:90:74:b2:7d:b9:54:7f:62:4a:35:fc:fe:63:6f:ec:ac:1a:41:1c
        Signature Algorithm: sha256WithRSAEncryption
        Issuer: CN=kh-n-lb1.isprime.com
        Validity
            Not Before: Jul 19 04:31:53 2020 GMT
            Not After : Jul 17 04:31:53 2030 GMT
        Subject: CN=kh-n-lb1.isprime.com
        Subject Public Key Info:
            Public Key Algorithm: rsaEncryption
                Public-Key: (2048 bit)
                Modulus:
                    00:a7:c1:89:a1:a0:92:23:43:17:59:19:c4:64:97:
                    1b:2b:cf:cc:bf:bf:80:09:aa:81:7a:1f:28:03:f6:
                    8b:03:28:c9:3d:fa:b6:a5:aa:71:f4:48:9a:39:c2:
                    23:fe:9a:bd:6f:fd:cc:2f:1b:5f:40:cc:c5:a9:19:
                    dc:bf:cc:74:d9:1d:d0:8e:be:d6:5b:89:e2:8b:2a:
                    88:55:35:9e:c2:cd:82:a1:ba:10:3e:af:1a:38:25:
                    5f:bd:b4:21:d9:37:d7:f2:bc:cc:e8:a5:fb:16:43:
                    eb:c4:a1:57:ea:24:ea:93:be:2f:23:e0:3c:35:dd:
                    8e:f9:cb:6e:7d:36:fb:f1:ce:6a:39:b9:f2:36:4b:
                    ef:e2:63:fc:60:d0:f0:be:05:ef:3e:f9:1f:ff:66:
                    52:3c:2d:97:ad:d2:a2:c3:46:8f:92:25:9f:c8:67:
                    80:06:05:e8:aa:87:a4:30:1d:02:8f:99:b2:29:bc:
                    ca:84:81:13:24:e0:3c:4f:5d:b5:a2:1a:7e:ec:fc:
                    46:a2:92:b6:f0:c0:24:57:a5:78:cd:cd:ac:56:e4:
                    a6:c2:f5:d8:b7:f2:3a:14:55:bb:e6:29:65:ca:ad:
                    65:50:14:32:f5:85:ba:8d:7f:39:fa:7d:3a:5c:d3:
                    02:2d:fa:5f:17:39:d6:66:12:5c:24:05:e2:de:cc:
                    a4:bd
                Exponent: 65537 (0x10001)
        X509v3 extensions:
            X509v3 Basic Constraints: 
                CA:FALSE
            X509v3 Subject Alternative Name: 
                DNS:kh-n-lb1.isprime.com
    Signature Algorithm: sha256WithRSAEncryption
    Signature Value:
        80:7f:59:b3:50:20:e6:2e:11:93:c6:da:cf:9f:c9:53:4e:f8:
        8a:26:7a:b6:87:7a:6f:26:bc:99:0c:cb:91:03:f4:20:f3:ca:
        57:d3:44:00:f9:bb:1b:72:77:ee:28:20:95:af:78:91:4e:9e:
        38:a9:cf:a2:aa:3f:03:54:18:85:a6:7a:f6:8f:6d:da:39:78:
        72:7f:77:31:3d:f3:69:62:aa:16:bd:0c:9a:68:11:66:e1:8b:
        15:50:ec:62:ec:9d:45:4a:1c:a0:6e:4b:72:34:bb:fd:0c:9e:
        0e:0b:12:5e:65:62:3c:ae:99:b0:47:86:6a:32:30:fe:7a:09:
        d7:33:11:a4:0a:65:4f:cd:72:2c:b9:c2:47:39:68:02:cc:33:
        c9:ba:00:17:09:71:37:31:9c:84:8e:25:35:91:31:e1:9a:94:
        4a:e3:36:df:76:d8:c9:29:09:71:ed:3d:72:be:c6:4c:dc:80:
        f6:a7:78:ca:38:48:87:7a:4b:c7:57:1f:53:cf:10:08:e6:50:
        f8:b0:79:3b:ee:4e:7c:7d:27:c6:b3:d9:a2:31:45:b9:56:89:
        92:5c:84:ad:f2:65:3b:60:f2:88:ed:7d:7c:7e:67:e8:23:c8:
        cd:77:73:ef:5f:a5:42:3d:17:d1:ff:4f:d1:4c:09:95:3c:51:
        8c:91:17:ca

nginx

HTTP/1.1 200 OK
Server: nginx
Content-Type: text/html
Last-Modified: Mon, 09 Aug 2010 16:16:14 GMT
Keep-Alive: timeout=5
X-UA-Device: desktop
X-Cacheable: YES
Transfer-Encoding: chunked
Date: Thu, 09 May 2024 21:07:47 GMT
Age: 0
Connection: keep-alive
Vary: Accept-Encoding, User-Agent
X-Cache: MISS v277be