Postfix smtpd

220 UNKNOWN ESMTP Postfix (Debian/GNU)
250-UNKNOWN
250-PIPELINING
250-SIZE 10240000
250-VRFY
250-ETRN
250-STARTTLS
250-ENHANCEDSTATUSCODES
250-8BITMIME
250 DSN

Certificate:
    Data:
        Version: 3 (0x2)
        Serial Number:
            94:c4:95:2f:78:30:7e:15
        Signature Algorithm: sha256WithRSAEncryption
        Issuer: CN=localhost.localdomain
        Validity
            Not Before: Nov  9 07:48:11 2015 GMT
            Not After : Nov  6 07:48:11 2025 GMT
        Subject: CN=localhost.localdomain
        Subject Public Key Info:
            Public Key Algorithm: rsaEncryption
                Public-Key: (2048 bit)
                Modulus:
                    00:c5:80:3b:31:5e:61:aa:ed:90:5f:55:24:c3:5d:
                    db:88:a1:a3:81:22:f9:c4:a1:38:c7:e3:7a:80:10:
                    88:7b:62:4d:f1:3a:66:cf:ec:44:e8:d8:13:03:1d:
                    c9:a2:47:58:17:92:4c:02:44:67:12:ed:e4:ed:ab:
                    f9:32:4a:8b:de:03:13:38:6e:ef:f4:d1:de:4b:a6:
                    41:a4:41:28:42:d5:03:15:56:46:5b:6a:4e:bc:16:
                    e7:3c:85:55:ab:63:74:fa:ae:92:bf:b3:41:ce:72:
                    52:b4:63:1c:4d:eb:64:45:56:ec:1a:a6:7f:9f:fd:
                    1d:e7:7b:b8:b4:34:ad:9f:5a:df:5a:eb:44:e8:20:
                    5f:1b:b7:33:5c:89:fb:33:5f:13:54:68:1a:4a:42:
                    11:fd:86:2d:6e:b0:e7:30:17:6c:ac:59:14:35:4f:
                    2f:0e:aa:3f:cc:23:41:a3:54:e1:ec:c3:f0:e6:db:
                    60:ff:03:8b:16:3f:fd:23:b2:86:16:ea:ff:19:83:
                    f3:18:13:9b:86:a2:f9:f7:48:9c:d3:3e:70:61:f7:
                    5e:1e:b4:be:9f:c9:ef:bc:87:3d:3f:d8:bc:42:c1:
                    3e:fa:23:ab:50:1e:5c:47:40:d7:e4:fa:f2:f7:5f:
                    d8:b5:40:15:0d:30:fd:6c:44:4e:07:09:e8:d8:d9:
                    e8:f7
                Exponent: 65537 (0x10001)
        X509v3 extensions:
            X509v3 Basic Constraints: 
                CA:FALSE
    Signature Algorithm: sha256WithRSAEncryption
    Signature Value:
        c1:5f:d0:77:17:6d:e1:3d:61:a3:59:3f:c0:d2:9b:5b:5b:35:
        20:10:4b:10:21:dd:df:17:14:05:6e:0d:bc:34:f4:da:69:8b:
        46:ff:46:d0:3c:d1:95:30:e8:04:f0:9c:06:8b:5b:8d:f5:44:
        10:8c:af:4a:06:fc:e3:b7:77:c9:17:fa:2b:20:f7:be:4c:55:
        b9:9c:05:2b:35:20:96:bc:92:31:d5:2c:04:b5:80:13:8c:ce:
        17:c3:50:f1:04:5a:76:72:20:d7:0b:4f:29:b9:d6:b2:aa:e1:
        d8:de:e5:59:05:eb:65:25:7d:84:45:cf:0c:3a:bb:60:d4:b8:
        01:bb:94:4a:a3:92:9c:6a:00:d1:a1:c5:f0:fb:dd:f2:a4:8e:
        9c:4c:09:8a:d0:1e:90:a0:9f:74:f7:00:69:df:97:e1:59:54:
        90:3a:0d:7e:5f:ad:f0:77:87:57:51:34:ae:48:7d:e3:0b:28:
        32:49:e3:1b:b1:0e:c2:00:bf:62:8e:9d:5d:4e:cb:d3:97:94:
        f3:15:83:0f:b5:f4:93:4b:06:a2:3e:b4:20:20:0e:02:73:54:
        aa:a3:71:94:54:da:60:0b:25:de:39:fc:50:db:42:be:df:76:
        16:5a:71:a5:31:43:13:85:3d:34:5f:36:1b:29:65:9b:c4:b8:
        76:65:92:f2

JD-GUI Java decompiler0.3.3

\t

HTTP/1.1 200 OK
Date: Sun, 22 Sep 2024 03:18:41 GMT
Connection: Keep-Alive
Cache-Control: no-store
X-Content-Type-Options: nosniff
X-Frame-Options: DENY
Strict-Transport-Security: max-age=3441341; includeSubDomains
Content-Security-Policy: default-src 'none'; frame-ancestors 'none'; script-src 'none'; object-src 'none';  connect-src *; upgrade-insecure-requests
Content-Type: text/html
Content-Length: 109