+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:
            4b:a7:01:b8:0b:bc:60:34:4f:c8:f1:90:2a:dc:60:38
        Signature Algorithm: sha256WithRSAEncryption
        Issuer: C=GB, ST=Greater Manchester, L=Salford, O=Sectigo Limited, CN=Sectigo RSA Domain Validation Secure Server CA
        Validity
            Not Before: Jun 12 00:00:00 2023 GMT
            Not After : Jun 30 23:59:59 2024 GMT
        Subject: CN=*.loginserver.ch
        Subject Public Key Info:
            Public Key Algorithm: rsaEncryption
                Public-Key: (2048 bit)
                Modulus:
                    00:f3:a9:74:79:cb:61:61:30:0e:8c:25:6c:fb:8f:
                    7b:7c:e8:cd:22:2e:8d:83:b4:a9:dc:fc:61:ed:77:
                    1f:34:51:19:49:4d:13:9d:bd:22:41:50:10:89:c0:
                    59:2e:01:c9:4d:22:5e:6e:6e:a5:03:b9:2f:94:fa:
                    7e:36:e1:e1:bf:fa:24:24:bc:33:a5:25:f2:90:60:
                    a0:9a:57:9f:66:22:40:83:4e:27:e6:02:90:e7:56:
                    9c:03:31:ef:4a:6d:2a:35:06:ce:40:29:81:f7:ae:
                    f0:3a:26:c5:cc:b8:1b:15:93:bb:ee:72:69:66:39:
                    0a:a2:c7:25:08:3b:73:fb:6d:f9:4d:9c:10:c2:4f:
                    9a:23:88:23:21:b8:fa:4c:e2:5e:59:9a:dd:68:2f:
                    3a:26:7e:f6:44:cf:47:43:05:3a:c0:f3:ff:ff:e6:
                    71:e6:48:f2:41:4a:91:09:a9:04:c1:94:23:3d:ed:
                    6a:85:62:e9:2f:e2:f4:77:65:92:68:74:54:9a:e1:
                    d9:53:b6:a8:d7:60:3b:30:0c:6b:10:5e:51:c1:cb:
                    e4:36:62:33:6d:64:00:75:dd:7b:b6:b2:d8:63:4e:
                    c6:6a:26:45:e6:47:05:b5:f6:ef:63:17:c7:be:71:
                    08:af:55:ac:34:99:62:23:90:b2:6f:09:03:d7:e5:
                    90:ab
                Exponent: 65537 (0x10001)
        X509v3 extensions:
            X509v3 Authority Key Identifier: 
                8D:8C:5E:C4:54:AD:8A:E1:77:E9:9B:F9:9B:05:E1:B8:01:8D:61:E1
            X509v3 Subject Key Identifier: 
                61:60:C0:E5:89:13:0A:00:3E:A0:41:79:06:FD:95:F7:69:30:F8:9E
            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: 1.3.6.1.4.1.6449.1.2.2.7
                  CPS: https://sectigo.com/CPS
                Policy: 2.23.140.1.2.1
            Authority Information Access: 
                CA Issuers - URI:http://crt.sectigo.com/SectigoRSADomainValidationSecureServerCA.crt
                OCSP - URI:http://ocsp.sectigo.com
            X509v3 Subject Alternative Name: 
                DNS:*.loginserver.ch, DNS:loginserver.ch
            CT Precertificate SCTs: 
                Signed Certificate Timestamp:
                    Version   : v1 (0x0)
                    Log ID    : 76:FF:88:3F:0A:B6:FB:95:51:C2:61:CC:F5:87:BA:34:
                                B4:A4:CD:BB:29:DC:68:42:0A:9F:E6:67:4C:5A:3A:74
                    Timestamp : Jun 12 07:40:06.257 2023 GMT
                    Extensions: none
                    Signature : ecdsa-with-SHA256
                                30:46:02:21:00:EC:4B:84:02:06:8A:C8:AE:98:47:B6:
                                A4:2D:6F:F4:02:46:4D:E6:28:28:13:E4:5E:CA:96:26:
                                0A:08:A8:29:A5:02:21:00:C7:1A:2D:EC:9F:47:96:ED:
                                78:B5:31:40:6C:FA:F4:22:0E:48:49:03:68:E0:6C:B6:
                                0F:B3:47:2D:CC:15:02:9B
                Signed Certificate Timestamp:
                    Version   : v1 (0x0)
                    Log ID    : DA:B6:BF:6B:3F:B5:B6:22:9F:9B:C2:BB:5C:6B:E8:70:
                                91:71:6C:BB:51:84:85:34:BD:A4:3D:30:48:D7:FB:AB
                    Timestamp : Jun 12 07:40:06.340 2023 GMT
                    Extensions: none
                    Signature : ecdsa-with-SHA256
                                30:45:02:21:00:F1:17:0B:0F:CB:30:77:35:98:3C:C4:
                                29:DA:A9:27:D2:E3:C6:29:1E:D0:59:06:FB:98:C8:95:
                                D7:63:6D:C7:8A:02:20:53:3D:D1:AD:89:6E:18:3A:66:
                                AB:B7:50:61:5C:44:3B:DD:A3:A2:67:AA:4E:84:6D:08:
                                4B:74:06:CF:D4:4B:64
                Signed Certificate Timestamp:
                    Version   : v1 (0x0)
                    Log ID    : EE:CD:D0:64:D5:DB:1A:CE:C5:5C:B7:9D:B4:CD:13:A2:
                                32:87:46:7C:BC:EC:DE:C3:51:48:59:46:71:1F:B5:9B
                    Timestamp : Jun 12 07:40:06.306 2023 GMT
                    Extensions: none
                    Signature : ecdsa-with-SHA256
                                30:46:02:21:00:DA:41:23:68:4B:30:5A:D4:9E:1E:83:
                                2A:7C:8A:E1:C2:23:D1:A0:9D:A9:93:5F:2F:A9:9D:94:
                                A7:43:E4:2E:AE:02:21:00:EC:90:13:56:A2:44:73:7A:
                                9B:66:56:6F:64:63:EE:A3:47:C7:3C:96:2F:C3:B6:62:
                                D0:63:22:BE:20:F3:4B:56
    Signature Algorithm: sha256WithRSAEncryption
    Signature Value:
        7a:55:a8:7f:4a:4f:32:b8:8f:cf:a7:cc:0c:78:c0:e5:57:db:
        3e:44:f2:cd:6d:97:d5:79:6b:01:af:6b:92:e0:42:7a:f6:9f:
        df:3c:e9:c2:e9:dd:26:ba:75:aa:e0:85:96:b7:24:b9:32:a8:
        e1:19:13:f9:07:3f:49:a3:df:39:3f:f7:38:46:8a:f2:b8:32:
        da:5f:d2:d3:16:44:a7:17:c4:d1:5c:b7:c6:6c:ca:da:66:d7:
        a0:d4:58:81:37:03:90:1a:eb:8e:86:9c:98:46:91:6f:03:25:
        6d:71:7d:92:14:83:dd:e9:b7:90:4d:39:49:4c:92:10:de:aa:
        c7:0f:74:3c:e6:7d:79:be:86:74:83:b1:56:16:cb:bc:9f:48:
        a9:b7:fe:94:87:03:80:ae:c3:9f:37:2c:6f:8a:e1:14:7a:0d:
        7b:9d:9a:30:36:31:a8:d0:61:78:1f:13:17:8e:aa:3c:06:25:
        93:c2:b9:43:ff:03:38:c2:a3:18:ef:c9:23:26:92:44:29:d2:
        70:32:cf:43:cb:f7:44:34:18:81:27:05:f3:fa:dc:53:81:4e:
        19:0a:f1:1c:15:51:13:bc:86:22:64:74:fb:23:8b:97:83:1c:
        ef:72:74:f1:1f:91:b3:96:f4:5b:ba:f2:05:fd:0c:89:61:9f:
        cc:5e:44:be

MySQL5.6.36

MySQL:
  Protocol Version: 10
  Version: 5.6.36
  Capabilities: 63487
  Server Language: 8
  Server Status: 2
  Extended Server Capabilities: 32895
  Authentication Plugin: mysql_native_password