Postfix smtpd

220 vps387860 ESMTP Postfix (Ubuntu)
250-vps387860
250-PIPELINING
250-SIZE 10240000
250-VRFY
250-ETRN
250-STARTTLS
250-ENHANCEDSTATUSCODES
250-8BITMIME
250-DSN
250 SMTPUTF8

Certificate:
    Data:
        Version: 3 (0x2)
        Serial Number:
            29:e4:21:f9:81:c6:6c:c2:cd:ea:57:1e:7b:bb:62:08:6b:21:d6:6b
        Signature Algorithm: sha256WithRSAEncryption
        Issuer: CN=vps387860
        Validity
            Not Before: Nov 16 14:59:33 2020 GMT
            Not After : Nov 14 14:59:33 2030 GMT
        Subject: CN=vps387860
        Subject Public Key Info:
            Public Key Algorithm: rsaEncryption
                Public-Key: (2048 bit)
                Modulus:
                    00:cf:79:67:ad:bc:80:fa:35:be:cc:81:c0:dd:2e:
                    70:e2:61:dd:d8:53:6d:6b:b6:c9:a4:08:38:e6:22:
                    d0:59:8e:3c:cf:c5:fe:5b:c2:dc:f1:5d:7f:bd:3c:
                    65:00:54:60:85:0c:d5:25:ff:25:e3:94:c5:a8:e1:
                    02:01:0a:5f:84:28:b2:a8:96:21:e4:ca:76:3f:89:
                    91:49:ae:8e:24:34:35:45:bf:c4:32:2c:30:9a:2c:
                    b6:76:f4:df:7f:e6:8a:94:b0:f3:f5:f8:3d:a3:ec:
                    91:01:dd:99:35:ef:45:27:86:35:33:9b:ac:af:22:
                    d0:0a:dc:55:47:d3:32:92:07:d5:6b:3e:75:4b:9c:
                    ec:15:3a:19:4a:f6:59:bf:7c:5c:b1:0b:24:7a:9e:
                    bb:e3:6f:5d:8a:f0:db:6a:0c:37:94:86:a5:63:04:
                    eb:f0:ac:6b:a0:59:e6:9e:1d:a7:fd:e2:83:a1:67:
                    ac:84:32:3f:00:75:70:ad:a2:99:42:16:eb:23:6d:
                    a8:b5:53:af:4b:30:34:20:32:72:e3:8a:51:c8:7d:
                    ea:72:15:59:f7:1e:c2:b5:22:bb:9f:36:38:7c:78:
                    f8:40:0c:21:35:0a:b6:e5:ac:51:5c:63:ec:4d:47:
                    a3:d8:a2:06:31:63:bd:c3:95:9d:bc:7a:3d:6a:92:
                    2e:9f
                Exponent: 65537 (0x10001)
        X509v3 extensions:
            X509v3 Basic Constraints: 
                CA:FALSE
            X509v3 Subject Alternative Name: 
                DNS:vps387860
    Signature Algorithm: sha256WithRSAEncryption
    Signature Value:
        88:0b:bd:ae:6c:cf:5a:97:2c:67:02:ed:ec:6c:2f:d6:73:ea:
        75:ba:20:ab:74:a2:ae:59:e6:96:e0:e5:04:f5:fc:ed:8a:97:
        7e:d5:04:e2:53:eb:b7:fd:06:d2:41:70:2c:81:69:71:03:75:
        6e:c9:90:30:75:c7:1f:1b:43:c9:bc:62:b6:b0:bc:9e:62:1a:
        95:db:30:3a:56:dd:da:fa:3e:e5:b2:19:5d:ce:58:75:cb:28:
        a6:4b:ab:d4:de:56:9a:38:40:52:38:52:bb:f1:28:3e:54:a9:
        79:7a:33:79:3e:5d:29:60:f4:60:b3:85:c1:5d:54:13:3e:0d:
        7e:24:3a:f1:09:08:e4:c1:55:86:7f:0e:a0:59:ec:e5:ed:93:
        7b:12:f7:96:bf:cd:00:b0:44:d6:cf:bf:5c:0b:14:1d:6d:7b:
        06:1b:24:18:d4:e5:0d:1e:a3:1b:81:24:be:37:61:18:57:26:
        25:5f:dc:51:29:f5:79:d5:47:75:18:78:0f:79:38:06:6a:f7:
        3f:66:89:b0:91:fc:ce:c7:8d:ce:ee:c7:16:3a:b0:47:8f:15:
        92:52:30:9a:1e:33:d4:3a:05:ea:13:ae:fd:b2:86:d2:88:9d:
        b0:87:ed:66:5d:a7:cd:66:66:6c:dc:49:e5:6b:96:81:71:f2:
        7e:e8:23:b4