Recursion: enabled

Recursion: enabled

+OK Server Ready 
+OK Here's what I can do:
CAPA
TOP
UIDL
RESP-CODES
USER
SASL PLAIN LOGIN
.

+OK Dovecot ready.
+OK
CAPA
TOP
UIDL
RESP-CODES
PIPELINING
AUTH-RESP-CODE
USER
SASL PLAIN LOGIN
.

Certificate:
    Data:
        Version: 3 (0x2)
        Serial Number:
            04:75:88:68:83:f0:01:37:9f:35:22:cb:54:94:10:c5:e4:2a
        Signature Algorithm: sha256WithRSAEncryption
        Issuer: C=US, O=Let's Encrypt, CN=R11
        Validity
            Not Before: Mar  3 08:27:52 2025 GMT
            Not After : Jun  1 08:27:51 2025 GMT
        Subject: CN=pop.cosmosbooks.com.hk
        Subject Public Key Info:
            Public Key Algorithm: rsaEncryption
                Public-Key: (2048 bit)
                Modulus:
                    00:bf:37:8a:5d:6a:05:8f:6a:9e:ef:71:af:3a:23:
                    1d:6e:28:22:17:2b:b4:60:4b:f0:09:37:15:9c:54:
                    2b:1c:1a:5e:63:ac:aa:46:3d:ae:50:fe:79:26:8c:
                    9f:f9:4a:83:34:78:a4:07:b3:f3:30:11:4d:29:e3:
                    8f:7f:9f:55:79:c7:2c:2a:5e:26:da:60:24:b4:ac:
                    7e:9a:dd:b3:c9:7c:87:96:ab:87:90:e5:bd:da:7a:
                    ab:d7:66:c9:3c:dc:37:5e:5a:61:07:ea:22:24:03:
                    d9:93:31:da:9e:e4:d6:bd:d3:30:d9:2d:3d:91:16:
                    d8:48:62:af:73:58:09:57:73:ff:67:40:3e:d1:89:
                    f9:53:b7:7c:55:9a:23:60:d2:d5:1f:92:b8:d8:51:
                    30:62:29:36:fa:24:6a:d2:e7:ea:af:0c:bf:f5:6b:
                    7c:0d:f0:eb:82:84:cd:db:7e:8a:cf:47:e9:f7:1c:
                    96:4c:af:61:b1:13:66:37:ce:32:b4:58:45:1e:9f:
                    e4:ed:52:ef:d7:52:37:4f:20:8c:28:87:96:a3:7d:
                    f5:04:e0:a4:21:e5:3f:18:b4:73:b0:40:7e:de:1e:
                    84:71:77:31:ff:ec:af:4c:a0:5f:f5:04:be:ec:2c:
                    f3:d7:f2:39:89:62:d2:b4:dc:8c:68:28:1d:cf:9c:
                    4c:2d
                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: 
                A8:46:24:A1:67:FA:D8:53:4F:B8:B7:81:CD:50:E8:BE:00:00:05:F2
            X509v3 Authority Key Identifier: 
                C5:CF:46:A4:EA:F4:C3:C0:7A:6C:95:C4:2D:B0:5E:92:2F:26:E3:B9
            Authority Information Access: 
                OCSP - URI:http://r11.o.lencr.org
                CA Issuers - URI:http://r11.i.lencr.org/
            X509v3 Subject Alternative Name: 
                DNS:pop.cosmosbooks.com.hk
            X509v3 Certificate Policies: 
                Policy: 2.23.140.1.2.1
            CT Precertificate SCTs: 
                Signed Certificate Timestamp:
                    Version   : v1 (0x0)
                    Log ID    : CF:11:56:EE:D5:2E:7C:AF:F3:87:5B:D9:69:2E:9B:E9:
                                1A:71:67:4A:B0:17:EC:AC:01:D2:5B:77:CE:CC:3B:08
                    Timestamp : Mar  3 09:26:23.067 2025 GMT
                    Extensions: none
                    Signature : ecdsa-with-SHA256
                                30:46:02:21:00:FC:F3:1C:AF:DE:3D:ED:94:3D:CB:22:
                                E6:7F:BE:F7:D2:30:87:9A:6B:7F:D5:FE:A3:21:28:FC:
                                DB:30:8D:8D:29:02:21:00:83:BD:46:2F:3D:52:89:02:
                                3E:B2:ED:05:AB:03:ED:FE:03:97:65:62:52:DF:85:03:
                                19:11:0B:5C:2F:BD:FD:93
                Signed Certificate Timestamp:
                    Version   : v1 (0x0)
                    Log ID    : 13:4A:DF:1A:B5:98:42:09:78:0C:6F:EF:4C:7A:91:A4:
                                16:B7:23:49:CE:58:57:6A:DF:AE:DA:A7:C2:AB:E0:22
                    Timestamp : Mar  3 09:26:23.291 2025 GMT
                    Extensions: none
                    Signature : ecdsa-with-SHA256
                                30:46:02:21:00:92:17:D9:4B:80:7C:58:55:F0:2D:0D:
                                EA:C9:35:3A:41:01:A2:BD:CC:56:48:27:0F:B9:1A:D1:
                                5A:ED:6E:89:CB:02:21:00:BF:41:59:A4:8D:23:1C:67:
                                19:FD:1B:9B:E4:95:38:D7:70:92:9C:E0:1D:50:45:02:
                                FE:D4:71:72:E4:EB:DE:E6
    Signature Algorithm: sha256WithRSAEncryption
    Signature Value:
        a8:9f:61:1f:23:6a:02:9b:dd:fc:f3:88:bc:a7:72:dc:2e:e6:
        cb:26:ea:04:98:54:7f:02:21:b8:63:ae:c8:af:f9:3d:3a:27:
        e8:7a:50:0d:29:5f:47:86:a6:67:11:69:24:9a:f7:54:12:4b:
        be:c4:07:6d:1b:0a:ca:90:80:7c:91:f4:ed:fa:54:98:41:06:
        95:b8:1e:7d:d2:09:c4:ee:3f:b6:60:f2:38:e8:3e:58:45:da:
        ce:36:76:19:0e:30:95:74:16:58:10:d9:8d:5e:c8:e9:0a:da:
        a6:5d:95:d4:15:93:82:f2:14:92:14:41:3c:78:68:a2:95:87:
        e9:bb:b8:99:15:dc:e6:90:94:af:ed:37:97:a2:94:96:2f:ba:
        5e:d8:4c:dc:fe:dd:ed:3b:3e:69:1c:4c:c8:72:6e:b8:1d:50:
        26:e6:43:ea:56:36:50:3c:32:80:07:86:9e:b2:15:33:ee:04:
        f1:42:6c:5f:f8:6d:2b:71:42:ab:4f:53:81:07:49:39:6d:30:
        b4:84:4b:c5:b4:5e:11:e7:f4:e2:dc:f1:0a:b1:73:9c:dd:fe:
        00:1a:31:f2:a9:54:3f:f9:8d:05:f5:f8:b8:01:3d:9e:96:02:
        52:35:86:c0:f9:03:d6:82:91:ba:d4:0f:93:dc:2d:25:eb:58:
        24:48:4e:b0

HTTP/1.0 400 Bad request: request-line invalid
Content-type: text/html; charset="utf-8"

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html lang="en" xml:lang="en" xmlns="http://www.w3.org/1999/xhtml">
  <head>
    <title>Request denied by WatchGuard HTTP Proxy</title> 
    <style type="text/css">
      body {
        font-family: Arial, Helvetica, Verdana, Sans-Serif;
        font-size: small;            
        font-weight: normal;            
        color: #000000;
      }
      div {            
        margin-left: auto;            
        margin-right: auto;            
        text-align: center;
      }
      .box {          
        width: 600px;
        background-color: #F2F2F2;            
        border-left: solid 1px #C2C2C2;            
        border-right: solid 1px #C2C2C2;            
        vertical-align: middle;
        padding: 20px 10px 20px 10px;
      }
      p {
        text-align: left;
      }
      .red {
        font-weight: bold;
        color: Red;
        text-align: center;
      }
      .band {            
        height: 20px;
        color: White;
        background: #333333;
        width: 600px;
        border-left: solid 1px #333333;
        border-right: solid 1px #333333;
        padding: 3px 10px 0px 10px;
      }
      div#wrap {
        margin-top: 50px;
      }
    </style>
  </head>
  <body> 
    <div id="wrap">
      <div class="band"></div>
      <div class="box" style="word-wrap:break-word;">
        <p class="red">Request denied by WatchGuard HTTP Proxy.</p>
        <p><b> Reason: </b> request-line invalid line='\x05\x01\x00\x0a' </p>
        <p>Please contact your administrator for assistance.</p>
        <p>More Details:</p>
        <p><b>Method:</b> </p>
        <p><b>Host:</b> 224.120.128.112:1080</p>
        <p><b>Path:</b> </p> 
      </div>
      <div class="band">WatchGuard Technologies, Inc.</div>
    </div>
  
</body>
</html>