Postfix smtpd

220 jofiel.imp.mx ESMTP Postfix
250-jofiel.imp.mx
250-PIPELINING
250-SIZE 10240000
250-VRFY
250-ETRN
250-ENHANCEDSTATUSCODES
250-8BITMIME
250-SMTPUTF8
250 CHUNKING

Certificate:
    Data:
        Version: 3 (0x2)
        Serial Number: 20563 (0x5053)
        Signature Algorithm: sha256WithRSAEncryption
        Issuer: C=--, ST=SomeState, L=SomeCity, O=SomeOrganization, OU=SomeOrganizationalUnit, CN=relay.imp.mx/emailAddress=root@relay.imp.mx
        Validity
            Not Before: Jun 27 18:05:59 2022 GMT
            Not After : Jun 27 18:05:59 2023 GMT
        Subject: C=--, ST=SomeState, L=SomeCity, O=SomeOrganization, OU=SomeOrganizationalUnit, CN=relay.imp.mx/emailAddress=root@relay.imp.mx
        Subject Public Key Info:
            Public Key Algorithm: rsaEncryption
                Public-Key: (4096 bit)
                Modulus:
                    00:c7:6c:b6:11:e1:00:55:d6:ed:be:e0:79:c4:8e:
                    cb:71:95:dd:e5:3a:4d:6a:cb:15:d7:11:49:a2:a1:
                    a8:8f:3d:ee:f3:5a:78:24:f7:a4:50:00:64:12:34:
                    64:1b:3c:b9:97:23:2d:ce:70:c5:16:d5:f6:bd:03:
                    b5:8f:71:19:ca:cb:e9:d7:88:d3:5a:dc:d9:6d:e1:
                    82:3e:83:1d:0a:4c:5c:8d:3e:1c:2f:4d:68:da:36:
                    3f:dc:15:39:e6:c0:d5:45:93:77:9a:30:6d:db:78:
                    67:c4:ad:b1:a4:06:ce:1a:3e:cb:93:b1:33:45:a9:
                    6e:4c:4f:a7:95:1f:36:a4:77:0a:af:e5:e9:76:94:
                    dd:4f:a1:06:af:db:49:cb:f7:37:1a:09:0a:97:14:
                    6a:16:3c:73:1e:8a:26:45:72:75:01:06:58:fd:38:
                    dd:29:c8:88:af:00:9c:f3:17:04:90:59:63:98:4a:
                    a1:f2:54:d4:e8:7a:09:1e:df:7d:78:f7:97:ef:19:
                    ad:8e:80:1d:9d:7f:b1:ba:12:99:12:b1:b5:17:3d:
                    aa:e7:0e:c5:7f:cb:7c:01:05:24:cb:51:a5:f8:dc:
                    33:f9:ef:e0:1a:f3:ef:d2:76:8f:3e:bf:b3:c6:ac:
                    1a:8c:db:98:96:fe:9f:5f:55:8e:8a:68:2f:1b:0c:
                    4a:39:17:07:23:bf:a5:8b:86:4f:29:99:bc:da:16:
                    97:de:19:ed:0f:db:d2:e0:21:6c:26:a7:47:06:12:
                    92:0a:99:0a:9d:a9:08:54:86:1d:97:41:15:d9:19:
                    26:4e:b3:74:58:91:42:5b:5b:8b:ba:03:6e:d6:73:
                    6c:60:4f:af:c3:a1:3d:d6:fa:b6:2c:70:8d:8d:33:
                    90:b9:e1:d0:08:ef:3b:a9:e5:75:f9:9d:0a:e4:c3:
                    d1:6c:c9:fb:35:2e:03:68:8c:03:66:4e:85:0c:2a:
                    da:75:a5:85:c2:ec:33:f7:2c:b7:75:19:13:28:3a:
                    88:c9:71:2c:92:18:8d:e3:de:32:cb:9c:62:f9:54:
                    62:10:b8:96:e8:a5:77:51:2a:13:92:88:16:50:74:
                    69:8e:69:b6:d4:aa:00:2b:40:b4:16:3d:81:72:1a:
                    3e:d4:cf:47:cf:20:bb:a0:60:1a:05:20:47:ad:26:
                    b5:6f:cf:cc:f8:4d:c0:10:07:ea:be:6e:16:9e:00:
                    58:b8:60:d8:2a:ec:ce:ef:1b:39:a1:cc:15:ce:b6:
                    4c:e6:fd:3c:18:55:91:a1:f5:ef:96:96:3b:28:6e:
                    46:eb:33:0d:37:8c:7c:66:ce:cb:b2:05:11:b3:a2:
                    36:d3:3b:fb:82:b4:8d:88:f3:4e:48:43:d2:94:c5:
                    0d:83:4d
                Exponent: 65537 (0x10001)
        X509v3 extensions:
            X509v3 Subject Key Identifier: 
                9E:57:DE:87:D8:4A:5D:2B:90:C2:61:D5:DC:65:4F:53:40:19:28:7C
            X509v3 Authority Key Identifier: 
                9E:57:DE:87:D8:4A:5D:2B:90:C2:61:D5:DC:65:4F:53:40:19:28:7C
            X509v3 Basic Constraints: critical
                CA:TRUE
    Signature Algorithm: sha256WithRSAEncryption
    Signature Value:
        2d:fa:4e:59:17:6f:3e:5a:4e:aa:11:23:4f:e0:12:68:44:04:
        4a:bb:40:59:db:0a:0a:89:f6:84:24:84:92:ee:4e:1f:0d:54:
        70:2a:8e:53:3c:8c:59:c3:44:24:4d:81:2c:1d:4b:c2:01:a4:
        a8:10:e5:87:25:fd:db:c0:90:9a:9d:94:e2:2b:9b:8b:36:17:
        1a:f9:07:b8:fd:78:7a:33:ae:36:0e:1c:6b:9f:8a:59:9b:4e:
        9d:13:d8:14:0b:88:7c:33:03:aa:23:f7:16:d6:0b:40:81:1a:
        d5:6d:e9:e5:c4:2b:aa:4a:11:3b:32:06:d9:b2:99:6b:96:7f:
        d8:c5:c4:39:60:b4:42:ae:f0:1d:34:ab:3f:19:8a:b6:40:9f:
        2d:26:9b:56:b8:d5:ff:0f:8b:20:43:65:e1:94:6e:4f:01:a9:
        e5:25:ab:16:03:07:17:93:b4:a5:d4:7a:41:b0:d8:07:0e:39:
        d6:74:e8:c4:3c:7c:d0:d3:a0:53:f2:64:f7:69:42:2d:ad:77:
        a9:fb:7b:80:84:bf:9e:cf:b0:8b:cc:84:1a:57:43:69:2a:2e:
        a8:f6:2e:94:c2:eb:30:bf:05:50:c1:cb:65:62:b9:48:a8:d5:
        9d:32:82:72:e9:a8:1f:a0:21:70:58:a0:b7:f6:cf:4a:da:17:
        ff:13:62:3b:4d:af:1b:08:8c:07:f2:a7:ba:89:3d:9c:ad:88:
        8b:ad:e5:68:87:e7:a5:d2:5f:5b:b6:83:69:8a:b2:1e:75:9f:
        dd:13:30:e4:50:93:b7:82:c9:ac:0e:3b:c9:c4:37:13:a0:e5:
        37:70:3e:75:94:fb:cf:90:0f:ed:10:6f:76:30:60:94:6b:74:
        33:aa:de:6c:94:7e:5d:27:c5:54:85:c8:63:6a:4a:97:ac:6a:
        8b:a9:38:a5:47:6f:c8:c8:74:94:eb:22:07:53:eb:fd:a5:2e:
        79:96:b0:ab:c7:be:58:b7:f6:56:24:95:35:25:94:50:35:ef:
        60:ec:d1:a8:dd:ad:76:83:3e:be:e5:7d:cf:f4:7e:e1:76:ae:
        87:7f:5c:a2:fd:16:74:3a:5a:b8:85:cd:f9:ba:dd:b2:90:db:
        69:70:3e:dc:53:b6:6b:4f:49:19:59:96:04:a8:c5:0b:bf:e3:
        21:89:83:91:46:2e:67:98:72:8d:a9:89:05:4b:30:97:9e:c4:
        f4:01:75:6d:54:b6:28:02:01:bf:68:12:e5:f0:b3:d3:82:60:
        20:c0:bc:e1:47:0f:b0:c2:db:c3:f4:e4:1c:f8:a9:41:85:59:
        13:6c:28:3c:41:17:7e:78:76:c9:08:04:33:88:c2:bb:30:c7:
        9a:cd:ca:5f:d0:e4:7e:bb