Dovecot pop3d

+OK Dovecot ready.\r\n

220 BitNinja FTP CAPTCHA server
230 User anonymous logged in from 224.209.179.177.
214-BitNinja FTP CAPTCHA server
214-Commands available:
214-APPE
214-CDUP
214-CWD
214-DELE
214-HELP
214-LIST
214-MKD
214-NOOP
214-PASS
214-PASV
214-PORT
214-PWD
214-QUIT
214-RETR
214-RMD
214-RNFR
214-RNTO
214-SIZE
214-STOR
214-SYST
214-TYPE
214-USER
214 HELP command successful.
502 Command not implemented.

220 ESMTP Postfix (Debian/GNU)
550 5.7.1 Your IP (224.209.179.177) is on the BitNinja server security greylist. This means that we experienced malicious attacks coming from your IP and placed it on our greylist due to security reasons. If you have taken the necessary steps to eliminate its source, you can delist this IP on (http://81.31.158.35:60412/spam_delist?hash=a517b557b332189af203ea1a7aeb6309) You can only delist this IP a couple of times. It is good idea to warn your service provider about this incident.

HTTP/1.1 403 Forbidden
Content-Type: text/html
Cache-Control: no-cache, no-store, must-revalidate
Pragma: no-cache
Expires: 0
Server: BitNinja Captcha Server
Date: Thu, 16 May 2024 04:34:30 GMT
Content-Length: 3520
Connection: close

HTTP/1.1 403 Forbidden
Content-Type: text/html
Cache-Control: no-cache, no-store, must-revalidate
Pragma: no-cache
Expires: 0
Server: BitNinja Captcha Server
Date: Thu, 16 May 2024 04:39:18 GMT
Content-Length: 3520

Certificate:
    Data:
        Version: 3 (0x2)
        Serial Number:
            03:81:93:52:df:f5:c4:e2:f1:58:49:40:22:8e:1d:3c:46:00
        Signature Algorithm: sha256WithRSAEncryption
        Issuer: C=US, O=Let's Encrypt, CN=R3
        Validity
            Not Before: Apr  5 23:27:40 2024 GMT
            Not After : Jul  4 23:27:39 2024 GMT
        Subject: CN=ftp.obiettivouomo.it
        Subject Public Key Info:
            Public Key Algorithm: id-ecPublicKey
                Public-Key: (384 bit)
                pub:
                    04:13:bd:40:cf:4a:86:31:8d:c8:ee:86:31:d2:0e:
                    78:e2:9d:50:dc:0c:28:17:5e:82:18:05:67:34:ec:
                    43:d5:b9:d3:89:f3:1d:8a:37:9f:e6:f6:d2:95:9e:
                    24:4f:c1:00:3f:3d:d0:4d:fe:a1:bd:63:90:bc:4e:
                    54:05:83:f5:9c:1c:a0:f6:f5:5c:47:86:58:1d:a2:
                    4f:cc:32:44:2f:82:46:38:7e:b7:82:13:00:a0:be:
                    ad:86:e0:ee:74:00:11
                ASN1 OID: secp384r1
                NIST CURVE: P-384
        X509v3 extensions:
            X509v3 Key Usage: critical
                Digital Signature
            X509v3 Extended Key Usage: 
                TLS Web Server Authentication, TLS Web Client Authentication
            X509v3 Basic Constraints: critical
                CA:FALSE
            X509v3 Subject Key Identifier: 
                5A:4F:E8:17:6E:E5:60:C9:45:92:5E:9C:07:FC:D4:C4:43:5A:4E:91
            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:ftp.obiettivouomo.it, DNS:imap.obiettivouomo.it, DNS:mail.obiettivouomo.it, DNS:obiettivouomo.it, DNS:pop.obiettivouomo.it, DNS:smtp.obiettivouomo.it, DNS:staging.obiettivouomo.it, DNS:webmail.obiettivouomo.it, DNS:www.obiettivouomo.it, DNS:www.staging.obiettivouomo.it
            X509v3 Certificate Policies: 
                Policy: 2.23.140.1.2.1
            CT Precertificate SCTs: 
                Signed Certificate Timestamp:
                    Version   : v1 (0x0)
                    Log ID    : DF:E1:56:EB:AA:05:AF:B5:9C:0F:86:71:8D:A8:C0:32:
                                4E:AE:56:D9:6E:A7:F5:A5:6A:01:D1:C1:3B:BE:52:5C
                    Timestamp : Apr  6 00:27:40.611 2024 GMT
                    Extensions: none
                    Signature : ecdsa-with-SHA256
                                30:46:02:21:00:B6:CB:4F:1F:D3:5B:D6:1F:72:B7:16:
                                D5:19:9C:51:E4:14:5C:E9:4C:19:82:AA:B2:BE:2B:D6:
                                BB:FE:DF:48:66:02:21:00:D5:B9:2F:8A:D8:E4:A9:5E:
                                75:A3:16:6D:60:B4:8B:40:35:2B:92:9F:0E:03:2A:89:
                                CE:7F:08:6F:A9:6D:E7:2A
                Signed Certificate Timestamp:
                    Version   : v1 (0x0)
                    Log ID    : 48:B0:E3:6B:DA:A6:47:34:0F:E5:6A:02:FA:9D:30:EB:
                                1C:52:01:CB:56:DD:2C:81:D9:BB:BF:AB:39:D8:84:73
                    Timestamp : Apr  6 00:27:40.404 2024 GMT
                    Extensions: none
                    Signature : ecdsa-with-SHA256
                                30:44:02:20:4A:32:7D:8C:E5:F6:8A:AE:FE:8E:C4:21:
                                00:94:30:33:B7:67:0D:E7:6D:58:CB:7A:19:D8:E1:C4:
                                71:D3:ED:EE:02:20:51:4E:00:0F:C2:E8:E8:3C:7D:E6:
                                D8:6E:F1:FB:01:FB:2A:60:3E:1C:B4:1B:D3:EF:92:6F:
                                E2:83:FE:B4:15:85
    Signature Algorithm: sha256WithRSAEncryption
    Signature Value:
        8a:aa:38:c3:5a:6f:8d:f7:70:1b:43:93:f3:23:f0:03:20:17:
        51:f5:e2:5d:da:83:19:94:a8:4c:88:4d:f4:68:97:43:b3:7d:
        ae:68:62:bc:b2:53:e2:51:f5:2c:b8:fb:f2:d7:76:75:b1:48:
        c0:57:b8:bd:cf:55:73:d4:91:c0:aa:d2:a9:df:21:d2:ac:02:
        dd:05:57:3f:ed:fe:3f:75:b3:fc:86:83:a1:26:30:4a:7d:30:
        10:bc:84:80:34:77:db:0e:d4:a8:ea:87:58:b3:76:6c:92:f0:
        f9:97:ce:78:8b:fc:8d:e2:de:74:ba:0e:e4:25:fd:c8:39:a3:
        32:23:d4:91:52:fb:c6:6a:f0:66:3e:3d:e2:49:71:7d:28:0d:
        56:3a:19:2a:eb:88:28:03:c1:48:c9:fe:fb:f4:a7:ab:73:7f:
        99:26:7e:77:ce:69:83:f3:82:cf:6e:5d:da:d2:aa:89:10:2c:
        7a:36:6e:8e:d3:34:81:a9:22:ec:d1:18:32:97:d8:94:f3:18:
        ea:f2:51:7e:01:a4:e7:ab:09:58:05:c8:5b:5e:5c:ec:dd:a6:
        a0:84:1b:be:a4:14:27:c9:ec:32:34:6b:fc:b6:32:0f:14:22:
        92:d8:bd:87:83:d9:75:32:6d:30:a9:57:d4:85:43:0f:3c:d7:
        a3:89:8f:f0