+OK Hello there.
+OK Here's what I can do:
TOP
USER
LOGIN-DELAY 10
PIPELINING
UIDL
IMPLEMENTATION Courier Mail Server
.

Certificate:
    Data:
        Version: 3 (0x2)
        Serial Number:
            f4:4a:92:6f:19:5c:9b:a1:68:f9:1c:d8:3c:00:9b:8b
        Signature Algorithm: sha384WithRSAEncryption
        Issuer: C=JP, O=CloudSecure Corporation, CN=CloudSecure RSA Domain Validation Secure Server CA 2
        Validity
            Not Before: Mar 11 00:00:00 2024 GMT
            Not After : Apr 11 23:59:59 2025 GMT
        Subject: CN=*.xbiz.ne.jp
        Subject Public Key Info:
            Public Key Algorithm: rsaEncryption
                Public-Key: (2048 bit)
                Modulus:
                    00:df:3d:95:c9:0c:15:a6:83:8a:11:ba:4e:d6:fc:
                    31:a3:79:f0:19:8e:db:c8:84:ef:02:40:0b:c2:89:
                    e7:95:6e:2f:5b:d7:3d:c0:28:45:c2:86:c5:d4:a6:
                    52:fd:d0:9a:02:4f:c6:8e:ff:69:c8:fc:e9:6e:3a:
                    b9:da:30:55:ed:98:b5:e6:92:09:6a:ed:f6:2f:47:
                    e1:af:e4:61:4e:ae:42:bc:cc:1a:11:82:c5:14:5b:
                    2d:c1:b9:2d:73:ac:b6:ae:c5:84:4d:30:e0:38:b9:
                    bd:83:ca:83:eb:c5:c6:70:fa:8d:4f:13:ad:2d:42:
                    c4:79:71:0b:51:e9:cb:fe:d3:be:b2:1d:52:26:94:
                    18:34:90:f8:95:70:11:37:89:6a:2d:ef:fb:4b:b4:
                    cc:b7:83:cd:16:64:cc:5d:e9:fd:47:60:0e:ea:78:
                    a4:12:02:55:3f:a2:47:30:d2:11:dc:ef:af:ce:22:
                    65:c1:a4:2b:88:1f:aa:97:84:03:f1:6e:b2:0a:0d:
                    47:33:8d:91:71:81:d2:b4:9a:78:2c:18:73:12:7c:
                    4d:4d:09:61:e1:b8:3d:6f:7f:3c:ae:54:4c:3f:77:
                    9a:df:7d:6c:09:a2:0b:e6:9b:db:c6:87:27:f8:ef:
                    39:6d:bb:0e:2b:7a:63:0a:f8:3a:59:f1:dc:88:d3:
                    8d:a5
                Exponent: 65537 (0x10001)
        X509v3 extensions:
            X509v3 Authority Key Identifier: 
                38:A7:FA:EA:10:9C:AF:30:72:B9:8F:DB:93:3E:96:B0:43:D6:96:81
            X509v3 Subject Key Identifier: 
                3A:6A:11:FA:49:15:FB:56:ED:9F:E0:6E:E1:38:F1:CD:8F:AF:EA:55
            X509v3 Key Usage: critical
                Digital Signature, Key Encipherment
            X509v3 Basic Constraints: critical
                CA:FALSE
            X509v3 Extended Key Usage: 
                TLS Web Server Authentication, TLS Web Client Authentication
            X509v3 Certificate Policies: 
                Policy: 1.3.6.1.4.1.6449.1.2.2.50
                  CPS: https://sectigo.com/CPS
                Policy: 2.23.140.1.2.1
            Authority Information Access: 
                CA Issuers - URI:http://crt.sectigo.com/CloudSecureRSADomainValidationSecureServerCA2.crt
                OCSP - URI:http://ocsp.sectigo.com
            X509v3 Subject Alternative Name: 
                DNS:*.xbiz.ne.jp, DNS:xbiz.ne.jp
            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 11 07:38:24.943 2024 GMT
                    Extensions: none
                    Signature : ecdsa-with-SHA256
                                30:45:02:21:00:80:DC:2B:27:44:D5:D6:26:66:3D:04:
                                C4:AC:EB:BD:8E:4E:C5:B4:0E:3A:21:DF:36:62:16:58:
                                34:1C:9B:E5:EB:02:20:32:F4:01:B7:9E:3B:FF:75:14:
                                F6:10:39:1B:E2:C6:04:13:FA:ED:19:4A:35:D2:1C:4A:
                                7E:4D:99:C5:E4:67:22
                Signed Certificate Timestamp:
                    Version   : v1 (0x0)
                    Log ID    : A2:E3:0A:E4:45:EF:BD:AD:9B:7E:38:ED:47:67:77:53:
                                D7:82:5B:84:94:D7:2B:5E:1B:2C:C4:B9:50:A4:47:E7
                    Timestamp : Mar 11 07:38:24.872 2024 GMT
                    Extensions: none
                    Signature : ecdsa-with-SHA256
                                30:45:02:20:5F:E4:A8:58:98:53:70:DF:CF:92:64:82:
                                3B:DF:CD:BE:F6:2A:60:38:7E:E3:FB:C7:63:06:C3:E3:
                                F5:A6:0A:D5:02:21:00:EB:72:8A:A5:56:0D:CF:5C:8A:
                                63:D8:E6:77:F8:50:3E:24:E4:EF:71:5A:3B:77:D8:8C:
                                E1:3D:57:CC:A9:7D:E3
                Signed Certificate Timestamp:
                    Version   : v1 (0x0)
                    Log ID    : 4E:75:A3:27:5C:9A:10:C3:38:5B:6C:D4:DF:3F:52:EB:
                                1D:F0:E0:8E:1B:8D:69:C0:B1:FA:64:B1:62:9A:39:DF
                    Timestamp : Mar 11 07:38:24.836 2024 GMT
                    Extensions: none
                    Signature : ecdsa-with-SHA256
                                30:46:02:21:00:BA:52:86:B4:EE:69:5C:BA:AF:D0:CE:
                                14:20:8A:0C:1A:F4:81:AB:BC:3A:31:99:3B:0B:9F:50:
                                9F:93:28:84:7E:02:21:00:FD:1B:42:4E:1E:87:95:32:
                                43:43:7A:AC:26:21:FD:A2:22:CB:A5:64:93:BB:19:2D:
                                FF:7E:D7:12:21:61:EB:DB
    Signature Algorithm: sha384WithRSAEncryption
    Signature Value:
        81:54:d1:81:32:be:ab:4c:60:a5:34:ab:4a:11:82:28:44:40:
        ea:73:ab:39:e3:03:cb:da:ac:cc:a4:4b:76:90:bf:ff:f8:c7:
        5a:51:24:00:49:36:08:db:a1:75:ab:46:53:23:cf:fa:e2:85:
        dc:54:7a:3c:22:fa:9f:20:ef:bc:fd:cb:da:76:b2:5d:30:95:
        1c:a5:23:c3:77:7f:72:c5:bd:a2:7b:2f:90:72:50:d8:dc:c2:
        74:d8:95:2b:26:8e:58:84:eb:dc:fe:01:dc:2b:00:0a:18:49:
        df:33:76:78:c3:45:c5:5b:e6:67:c1:a2:26:3f:a9:3e:a8:b8:
        2b:a1:dc:d4:6f:40:d5:9b:99:ad:1f:c7:96:59:4b:2c:a7:7d:
        7b:a2:70:c2:16:3b:15:96:1b:8f:0a:41:ca:6a:71:4f:e7:0e:
        5c:35:9f:1e:ff:0d:97:91:dd:b6:31:c3:a0:66:dd:0c:7b:87:
        67:ff:65:0c:00:53:67:a1:31:0f:84:f7:42:47:6b:d7:cc:db:
        44:27:f6:45:e3:5b:9e:37:55:ad:44:db:90:c6:e2:91:b9:95:
        ef:3c:58:34:09:0b:fd:e7:82:13:58:51:c9:2c:dd:d9:7b:83:
        0d:1d:c9:a1:12:a7:89:db:eb:64:ac:7d:e2:21:2c:fd:da:5f:
        3d:9a:ad:00:8f:85:08:6b:35:3a:34:8b:32:ff:0b:84:79:b5:
        2e:3c:f8:67:50:27:6b:23:23:fd:fa:93:09:53:ed:02:4f:88:
        3d:0c:81:fb:4c:d7:f1:10:2b:1e:d4:14:7a:46:53:93:d4:79:
        de:92:e2:85:3a:d0:d7:b7:30:ee:6c:48:4c:a7:a6:43:22:26:
        06:2e:5c:26:d7:3f:74:9c:78:79:9a:f8:ca:b7:85:93:8f:90:
        3e:38:b2:b9:ba:2c:9b:1d:76:06:68:b0:8d:94:ee:69:2a:6e:
        61:ea:3f:29:cd:df:28:e8:71:d4:c3:cc:78:1e:f4:03:17:b7:
        58:fd:56:91:49:28