Postfix smtpd

220 ubuntu-cloudpanel.localhost ESMTP Postfix (Ubuntu)
250-ubuntu-cloudpanel.localhost
250-PIPELINING
250-SIZE 10240000
250-VRFY
250-ETRN
250-STARTTLS
250-ENHANCEDSTATUSCODES
250-8BITMIME
250-DSN
250-SMTPUTF8
250 CHUNKING

Certificate:
    Data:
        Version: 3 (0x2)
        Serial Number:
            0a:87:2a:84:dc:24:7d:22:fa:58:de:8d:ec:ec:cc:71:29:86:e0:08
        Signature Algorithm: sha256WithRSAEncryption
        Issuer: CN=ubuntu-cloudpanel.localhost
        Validity
            Not Before: Sep  1 07:21:30 2023 GMT
            Not After : Aug 29 07:21:30 2033 GMT
        Subject: CN=ubuntu-cloudpanel.localhost
        Subject Public Key Info:
            Public Key Algorithm: rsaEncryption
                Public-Key: (2048 bit)
                Modulus:
                    00:94:75:47:51:eb:d4:8e:6b:31:b4:90:d6:86:84:
                    3b:d7:09:13:d6:98:13:88:dd:01:51:e1:19:93:b0:
                    4c:9c:76:47:af:80:49:3d:47:90:e2:b7:a8:7e:af:
                    4f:fa:0b:03:ca:17:3b:f0:2d:ce:ed:d2:1e:94:03:
                    85:b4:af:99:bf:ea:c0:9a:81:eb:97:b5:92:7b:58:
                    f4:08:ba:c1:3e:ae:30:58:e5:f3:3e:95:8c:1b:96:
                    d0:77:3c:65:6f:91:68:b5:6f:1f:1c:33:09:73:cc:
                    80:c3:ff:43:1d:e6:3b:53:28:f5:95:fd:3a:54:37:
                    2c:7c:1f:33:3b:51:8d:f2:f4:a6:de:3b:ad:d4:b8:
                    c6:2e:a3:6a:ea:27:2f:79:42:61:b2:d2:f4:b1:ac:
                    2c:0a:3d:95:9f:3f:9c:a2:a8:df:fb:45:4c:34:c9:
                    2f:b3:45:37:a1:1e:5c:4a:21:a6:cf:1b:e8:72:be:
                    92:03:9c:35:c8:6e:3d:15:8c:64:90:04:93:5a:66:
                    2a:ff:72:72:87:37:3e:ab:fd:f2:4f:c2:da:5f:c4:
                    2b:44:e0:df:a6:bd:ff:64:e3:f8:81:39:71:6c:92:
                    b9:20:23:06:8a:e7:e3:c1:4b:c5:f9:4c:c4:4f:25:
                    6b:6f:f3:ba:d5:36:02:43:b0:12:c4:78:27:b3:fd:
                    0d:a3
                Exponent: 65537 (0x10001)
        X509v3 extensions:
            X509v3 Basic Constraints: 
                CA:FALSE
            X509v3 Subject Alternative Name: 
                DNS:ubuntu-cloudpanel.localhost
            X509v3 Subject Key Identifier: 
                92:81:0D:0E:F0:5E:09:AB:15:D9:B0:75:A7:D9:CA:5C:1B:44:F4:F2
    Signature Algorithm: sha256WithRSAEncryption
    Signature Value:
        5a:c5:3d:3e:f8:a4:7b:bc:a5:db:9e:44:52:ef:61:3d:c5:3c:
        ec:3b:f0:7a:55:8f:bc:09:e5:9b:55:1f:fb:7e:25:d0:29:05:
        13:d4:05:81:20:5d:9d:e9:1b:a1:c9:f4:23:94:11:30:58:fe:
        c9:24:9b:e3:fd:e7:cd:80:df:d6:ca:a5:83:56:14:84:03:75:
        3f:df:22:70:2c:79:5f:12:78:a8:52:ee:2d:67:3c:77:5f:ac:
        b5:52:ca:ca:d9:2c:fa:68:37:dd:29:5d:de:e4:66:25:5c:a5:
        cb:7b:8f:c2:2f:4b:70:8f:a6:e2:bc:9f:6d:e0:e4:31:e1:a2:
        46:48:81:f3:8c:48:8c:3d:f0:65:ba:f2:48:d2:a2:e1:fc:78:
        1f:35:5f:73:66:d1:42:b6:e8:f1:17:8b:ff:77:fa:6d:b8:e0:
        c6:cc:09:ad:ce:70:bf:b4:dd:1d:17:cf:ce:71:63:54:a0:c7:
        36:89:9b:84:41:97:f0:2b:b9:61:05:87:e7:ad:3e:a9:57:ac:
        44:d5:bc:18:65:04:64:fd:a5:1e:7f:a9:d1:a2:2b:42:2a:d2:
        f1:a6:79:fa:03:3a:5b:dc:34:d6:d9:5c:c8:b4:0c:cd:df:ae:
        42:e5:bf:b9:18:ac:19:a1:e6:43:b5:38:ef:9e:ae:3e:8c:77:
        9f:1d:30:df