Postfix smtpd

220 klikpojisteni-gw1.superhosting.cz ESMTP Postfix (Debian/GNU)
250-klikpojisteni-gw1.superhosting.cz
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:
            13:d5:07:ec:32:b4:9b:97:f1:ca:10:12:e6:61:78:4f:bf:ef:5b:16
        Signature Algorithm: sha256WithRSAEncryption
        Issuer: CN=klikpojisteni-gw1
        Validity
            Not Before: Sep 20 12:40:27 2024 GMT
            Not After : Sep 18 12:40:27 2034 GMT
        Subject: CN=klikpojisteni-gw1
        Subject Public Key Info:
            Public Key Algorithm: rsaEncryption
                Public-Key: (2048 bit)
                Modulus:
                    00:da:7f:90:32:d0:18:b9:f6:39:17:14:e0:45:68:
                    8f:d9:16:7f:7e:8b:13:80:ae:40:d0:e6:e3:82:ac:
                    4c:f8:3b:5d:b0:30:b1:69:6c:b7:41:b7:fa:55:c0:
                    25:10:53:ea:2a:e4:aa:35:0b:04:a5:74:d7:38:76:
                    36:02:d5:f2:32:af:20:33:b7:2c:64:99:a7:f1:ea:
                    60:3e:38:c9:10:4a:82:0d:6a:ba:b5:24:86:90:55:
                    c7:3c:13:5e:c5:ac:95:e3:0d:1f:3e:0d:3c:55:74:
                    de:e0:d1:16:ea:c6:e7:15:aa:83:c8:a0:3b:a6:99:
                    78:ea:14:d9:72:49:9b:c6:dc:04:24:d7:6e:8f:58:
                    0c:0a:7a:33:98:84:41:9e:63:12:1e:46:45:12:b5:
                    33:91:20:bd:39:9f:35:ef:bd:e3:f0:81:f6:54:15:
                    5b:17:0a:89:a0:cd:36:e1:ff:7f:75:ca:37:56:74:
                    93:5b:3f:cd:b9:45:ce:d9:5c:7a:da:17:49:5f:43:
                    39:d4:ac:7a:33:13:11:8d:96:4f:a8:f9:e7:58:b7:
                    75:7f:f0:42:da:7a:a2:68:e5:cf:ce:c2:f9:8d:42:
                    4d:68:27:7e:6d:65:f0:9f:6c:ff:64:19:eb:c9:b6:
                    05:c3:89:1a:95:5d:40:d9:8f:5a:81:fb:07:8e:f9:
                    a7:c9
                Exponent: 65537 (0x10001)
        X509v3 extensions:
            X509v3 Basic Constraints: 
                CA:FALSE
            X509v3 Subject Alternative Name: 
                DNS:klikpojisteni-gw1
            X509v3 Subject Key Identifier: 
                EF:02:7E:0B:02:2F:18:B0:8D:60:A2:CD:FB:87:77:1B:46:0B:C8:67
    Signature Algorithm: sha256WithRSAEncryption
    Signature Value:
        32:41:4e:73:0f:44:07:e9:45:b3:62:35:ca:e3:b1:2f:56:ab:
        ab:e2:e5:32:14:06:ea:53:f3:56:66:31:a0:8d:4d:bf:13:5a:
        25:9c:10:76:71:32:33:4b:99:e0:b1:0e:04:0a:3b:d9:f4:84:
        0d:d3:3e:3b:f2:48:ae:b3:64:aa:86:d2:8d:35:98:84:87:32:
        96:1b:9b:c6:7e:99:f9:93:f9:77:dc:db:61:7b:bf:5d:54:87:
        d5:34:0d:b0:4a:8a:5a:6d:df:1d:a9:80:6a:74:75:26:c9:36:
        81:90:6f:42:cc:63:f1:dd:4d:9b:26:ea:9e:a1:d5:c4:d0:c8:
        45:69:b0:6b:6d:0c:03:96:a7:29:5c:85:61:ae:d9:7b:a2:05:
        0e:ef:19:bd:50:d6:6b:ba:94:02:55:c8:28:2c:70:3b:94:d1:
        6d:e6:0f:2a:a2:9a:04:84:e9:3e:4a:bc:0d:4e:72:75:5d:09:
        37:1a:9b:5d:ea:66:1d:58:e4:43:2c:d4:56:b6:dd:f2:19:d1:
        9d:b5:9d:20:20:e7:31:b8:c2:5f:ed:af:b4:5f:8e:b1:ba:11:
        d0:e9:28:c6:64:ad:3c:eb:2d:d1:0e:38:20:81:f0:a8:25:ae:
        5c:f7:08:55:fb:f4:13:6d:40:8a:3d:d7:50:3f:e1:f0:94:74:
        f2:0b:96:4d