Postfix smtpd

220 mail.rukker.xs ESMTP Postfix (Ubuntu)
250-mail.rukker.xs
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:
            7d:07:e4:81:22:48:e9:70:a5:e9:77:89:3d:20:54:fc:11:47:f3:98
        Signature Algorithm: sha256WithRSAEncryption
        Issuer: CN=localhost.localdomain
        Validity
            Not Before: Jul  6 14:09:28 2020 GMT
            Not After : Jul  4 14:09:28 2030 GMT
        Subject: CN=localhost.localdomain
        Subject Public Key Info:
            Public Key Algorithm: rsaEncryption
                Public-Key: (2048 bit)
                Modulus:
                    00:e2:cd:7e:fd:8f:f4:27:14:45:3d:a9:8e:97:30:
                    9b:6b:5a:2f:01:e2:05:41:96:90:69:d7:46:fd:12:
                    e6:0a:2d:79:3f:26:03:87:2a:8f:ac:0f:73:f8:ae:
                    5a:e9:e2:9f:72:7e:84:ff:76:19:82:d3:58:25:de:
                    ed:82:c7:7d:dc:c5:69:21:59:bf:c9:35:54:43:a5:
                    51:d7:38:ff:a9:b0:4f:f5:b8:22:70:04:fa:2a:f3:
                    8b:6c:34:b3:2a:10:c2:ea:99:cb:05:c7:26:72:bd:
                    0e:9b:7c:e4:88:88:e7:59:bb:b9:b5:e1:84:79:07:
                    1c:fa:00:53:2a:4d:db:4a:3b:cd:bb:87:3c:61:7a:
                    3e:66:69:f6:c3:b3:a6:74:56:a5:a1:2d:f2:29:56:
                    47:05:f3:4e:51:47:99:49:85:0c:88:16:30:ff:63:
                    8d:c0:da:e1:e9:78:05:cd:11:a9:26:9b:63:a8:0a:
                    69:c6:59:65:cc:21:30:15:00:78:20:66:64:3c:43:
                    d9:0c:de:80:14:90:22:f6:45:e9:a9:85:50:b4:67:
                    78:9f:e8:51:19:f7:86:41:a8:17:1d:33:48:ac:bb:
                    f4:bf:e0:d5:ce:80:fe:c6:d5:53:98:6e:f8:cf:3d:
                    00:52:ed:c3:c1:a0:47:14:d9:3b:53:1e:64:ff:f4:
                    60:97
                Exponent: 65537 (0x10001)
        X509v3 extensions:
            X509v3 Basic Constraints: 
                CA:FALSE
            X509v3 Subject Alternative Name: 
                DNS:localhost.localdomain
    Signature Algorithm: sha256WithRSAEncryption
    Signature Value:
        12:b7:09:a6:4e:31:92:2c:0a:c2:a3:b6:ce:05:8b:58:09:cf:
        1b:03:c6:38:99:f1:5c:7a:26:f6:51:85:d5:ba:ac:1c:00:6d:
        3d:25:bc:86:b3:89:a4:46:9b:fd:b0:2d:14:c9:fb:f1:c2:e5:
        82:0e:de:fb:7f:18:cc:25:2d:5d:6c:36:40:75:05:44:17:d7:
        ea:ca:7d:84:3a:d1:5b:e9:ea:cb:64:4e:97:7f:5e:90:18:f3:
        34:71:70:31:d3:10:be:0a:f6:d9:18:4e:03:77:21:b6:1a:4e:
        bf:21:42:2a:db:de:47:e4:0c:f7:4c:45:26:08:9a:fa:d1:8a:
        7e:04:8a:eb:00:1e:0a:70:81:04:52:c4:04:77:f8:8c:b9:48:
        fa:17:67:1b:12:7d:e8:c2:2e:f1:67:d5:4a:60:2e:e2:c7:e0:
        20:84:5b:53:0d:6c:82:4c:f0:45:b5:48:ed:23:0c:aa:6d:99:
        70:f7:c1:59:5b:c0:f2:65:8d:fa:a2:d8:65:77:ee:b0:64:34:
        c0:5d:6f:45:3f:93:6d:bf:0c:9d:97:30:be:3b:d1:e8:2a:68:
        65:c0:05:b7:f7:21:76:48:01:b4:d4:b8:b7:1a:d4:59:31:cd:
        8d:99:b6:62:6c:46:57:e5:cd:5b:54:59:91:b2:54:87:91:9b:
        12:a9:f1:c3

* OK [CAPABILITY IMAP4rev1 SASL-IR LOGIN-REFERRALS ID ENABLE IDLE LITERAL+ AUTH=PLAIN] Dovecot (Ubuntu) ready.
* CAPABILITY IMAP4rev1 SASL-IR LOGIN-REFERRALS ID ENABLE IDLE LITERAL+ AUTH=PLAIN
A001 OK Pre-login capabilities listed, post-login capabilities have more.
* ID ("name" "Dovecot")
A002 OK ID completed.
A003 BAD Error in IMAP command received by server.
* BYE Logging out
A004 OK Logout completed.

+OK Dovecot (Ubuntu) ready.
+OK
CAPA
TOP
UIDL
RESP-CODES
PIPELINING
AUTH-RESP-CODE
USER
SASL PLAIN
.