Postfix smtpd

220 rly-zla10.maildoso.io ESMTP Postfix
250-rly-zla10.maildoso.io
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:
            03:e2:8a:a2:a2:b2:c2:8a:22:e9:e4:7f:85:37:3f:84:9a:23
        Signature Algorithm: sha256WithRSAEncryption
        Issuer: C=US, O=Let's Encrypt, CN=R3
        Validity
            Not Before: Apr  5 09:49:33 2024 GMT
            Not After : Jul  4 09:49:32 2024 GMT
        Subject: CN=rly-zla10.maildoso.io
        Subject Public Key Info:
            Public Key Algorithm: id-ecPublicKey
                Public-Key: (256 bit)
                pub:
                    04:2b:82:e0:85:73:b9:3a:e2:d9:bd:12:b1:22:9f:
                    7e:6e:c8:f9:f5:5d:08:ec:5b:d5:06:9f:79:6b:12:
                    1f:9b:c1:fd:37:76:52:94:2e:b3:7d:c9:90:d5:3c:
                    3f:de:f9:55:49:f5:ab:0a:55:75:58:67:47:1e:9d:
                    8e:d2:d3:99:a0
                ASN1 OID: prime256v1
                NIST CURVE: P-256
        X509v3 extensions:
            X509v3 Key Usage: critical
                Digital Signature
            X509v3 Extended Key Usage: 
                TLS Web Server Authentication, TLS Web Client Authentication
            X509v3 Basic Constraints: critical
                CA:FALSE
            X509v3 Subject Key Identifier: 
                42:29:D9:AA:9B:FB:22:94:98:18:AA:64:63:F8:6B:79:26:82:6D:E1
            X509v3 Authority Key Identifier: 
                14:2E:B3:17:B7:58:56:CB:AE:50:09:40:E6:1F:AF:9D:8B:14:C2:C6
            Authority Information Access: 
                OCSP - URI:http://r3.o.lencr.org
                CA Issuers - URI:http://r3.i.lencr.org/
            X509v3 Subject Alternative Name: 
                DNS:rly-zla10.maildoso.io
            X509v3 Certificate Policies: 
                Policy: 2.23.140.1.2.1
            CT Precertificate SCTs: 
                Signed Certificate Timestamp:
                    Version   : v1 (0x0)
                    Log ID    : 3B:53:77:75:3E:2D:B9:80:4E:8B:30:5B:06:FE:40:3B:
                                67:D8:4F:C3:F4:C7:BD:00:0D:2D:72:6F:E1:FA:D4:17
                    Timestamp : Apr  5 10:49:33.438 2024 GMT
                    Extensions: none
                    Signature : ecdsa-with-SHA256
                                30:45:02:20:65:BE:9F:36:FA:EC:17:8F:70:73:61:59:
                                61:79:40:BF:8D:BF:63:F0:C6:02:B0:D2:99:3B:DC:83:
                                86:4B:E3:25:02:21:00:CC:50:15:C3:4F:76:5E:AE:B7:
                                EE:D3:6E:15:27:FB:CF:6B:15:34:A6:8E:5B:4D:2B:6B:
                                D9:A0:EA:11:C4:D2:4D
                Signed Certificate Timestamp:
                    Version   : v1 (0x0)
                    Log ID    : DF:E1:56:EB:AA:05:AF:B5:9C:0F:86:71:8D:A8:C0:32:
                                4E:AE:56:D9:6E:A7:F5:A5:6A:01:D1:C1:3B:BE:52:5C
                    Timestamp : Apr  5 10:49:33.631 2024 GMT
                    Extensions: none
                    Signature : ecdsa-with-SHA256
                                30:44:02:20:5E:E6:D7:82:06:8E:3B:62:C6:CF:81:BD:
                                4B:7D:18:83:71:5C:C3:48:CF:BB:D1:0E:31:1B:73:85:
                                10:EF:78:76:02:20:1D:7B:DC:FC:9B:14:F3:A0:F1:6A:
                                3B:DF:38:93:1F:7E:86:EE:A7:9E:31:70:FD:41:52:8B:
                                1B:B5:A3:D2:A9:31
    Signature Algorithm: sha256WithRSAEncryption
    Signature Value:
        25:f0:3b:14:4b:9b:ab:8a:7f:f3:82:54:db:f0:54:d8:12:85:
        5e:ce:fa:16:03:66:72:ee:ba:ae:10:79:45:54:4d:30:0d:24:
        59:da:b9:ad:27:60:68:8c:aa:70:dc:04:29:07:ae:93:fb:7b:
        47:83:49:28:0c:65:ca:22:d7:7d:ab:79:c8:64:bb:c3:ec:03:
        21:30:2c:7e:ad:31:9b:e0:3b:73:dd:ea:f0:35:83:8d:6f:46:
        04:4e:0d:df:bc:62:ee:51:1a:40:22:11:d7:b3:31:30:00:a1:
        63:9a:17:b2:5c:a0:5a:bf:95:9a:f5:10:31:93:58:ac:2b:8f:
        e9:fe:d1:20:2a:cc:fc:ce:85:53:dd:9c:46:1f:87:4d:90:bb:
        af:54:48:09:ac:e1:1e:87:0d:82:b1:62:63:3a:bb:50:17:6a:
        1d:ba:58:1f:e9:86:8e:77:eb:a4:48:99:9b:39:67:67:61:0d:
        73:e0:0a:86:4b:ed:51:bd:c8:8f:58:c9:73:09:b6:c1:96:5f:
        12:10:59:d5:a6:80:f7:92:b6:05:33:44:b7:0f:5c:43:03:9e:
        ed:0f:54:1e:39:25:b0:d1:16:cb:48:67:d2:53:d7:d1:aa:6a:
        f4:0c:87:2d:05:e9:68:1a:aa:8f:4a:27:14:59:1f:da:7d:3a:
        fe:89:b7:fc