Last Seen: 2026-09-30
Tags:
starttls
-2109629197 | 2026-09-16T21:05:11
220 mail.takakura.com ESMTP 250-mail.takakura.com 250-PIPELINING 250-SIZE 51200000 250-ETRN 250-STARTTLS 250-AUTH PLAIN LOGIN 250-ENHANCEDSTATUSCODES 250-8BITMIME 250-DSN 250-SMTPUTF8 250 CHUNKING
SSL Certificate
Certificate:
Data:
Version: 3 (0x2)
Serial Number:
06:96:85:13:ea:05:5c:74:29:be:fd:00:70:42:1e:0f:80:29
Signature Algorithm: ecdsa-with-SHA384
Issuer: C=US, O=Let's Encrypt, CN=YE1
Validity
Not Before: Sep 7 12:30:37 2026 GMT
Not After : Dec 6 12:30:36 2026 GMT
Subject: CN=mail.takakura.com
Subject Public Key Info:
Public Key Algorithm: id-ecPublicKey
Public-Key: (256 bit field, 128 bit security level)
pub:
04:f6:dc:55:a5:a7:e2:f6:14:d6:a5:5e:e3:81:86:38:
9f:35:35:c6:9d:c3:ee:44:4f:60:ca:c1:74:00:5c:b3:
71:42:28:96:41:be:d5:2c:6a:8d:32:54:ae:d6:90:bf:
a9:80:bb:c7:ce:d0:88:eb:4f:fb:a3:87:be:3d:83:0b:
c8
ASN1 OID: prime256v1
NIST CURVE: P-256
X509v3 extensions:
X509v3 Key Usage: critical
Digital Signature
X509v3 Extended Key Usage:
TLS Web Server Authentication
X509v3 Basic Constraints: critical
CA:FALSE
X509v3 Subject Key Identifier:
34:70:16:4F:B3:1B:26:27:46:3A:05:D6:D1:69:D7:04:EB:7D:52:F5
X509v3 Authority Key Identifier:
BB:20:CA:47:0B:FE:D7:E5:9C:F9:8F:09:2A:A3:8C:37:45:B1:BC:D8
Authority Information Access:
CA Issuers - URI:http://ye1.i.lencr.org/
X509v3 Subject Alternative Name:
DNS:mail.takakura.com
X509v3 Certificate Policies:
Policy: 2.23.140.1.2.1
X509v3 CRL Distribution Points:
Full Name:
URI:http://ye1.c.lencr.org/42.crl
CT Precertificate SCTs:
Signed Certificate Timestamp:
Version : v1 (0x0)
Log ID : CB:38:F7:15:89:7C:84:A1:44:5F:5B:C1:DD:FB:C9:6E:
F2:9A:59:CD:47:0A:69:05:85:B0:CB:14:C3:14:58:E7
Timestamp : Sep 7 13:29:07.685 2026 GMT
Extensions: none
Signature : ecdsa-with-SHA256
30:44:02:20:5B:55:6D:16:63:1D:62:92:A5:F4:DD:EF:
E0:3A:26:DB:B5:42:28:F7:06:D2:69:F7:57:32:15:E8:
77:FA:ED:10:02:20:1C:DB:7C:D5:7D:B2:72:E9:FB:19:
CB:C4:B8:EE:45:38:73:4C:BE:2E:22:7E:D2:D8:5F:8F:
1A:37:A4:E0:C7:AE
Signed Certificate Timestamp:
Version : v1 (0x0)
Log ID : 6C:FE:50:19:43:A8:5E:A9:16:BC:52:D1:33:E4:DC:C9:
1E:F1:41:1C:7D:25:84:20:D1:73:80:9E:18:18:EB:3A
Timestamp : Sep 7 13:29:08.662 2026 GMT
Extensions: 00:00:05:00:2F:7C:A1:FB
Signature : ecdsa-with-SHA256
30:46:02:21:00:9D:5C:C9:17:92:89:EB:17:A9:AC:4A:
D8:E4:70:8F:CE:D7:41:DD:25:08:DA:80:45:ED:FF:CC:
8F:D2:0E:0C:7C:02:21:00:F5:17:27:9D:4D:92:F2:66:
8A:C9:62:B1:AF:F8:8D:D5:D2:4D:2B:9B:4D:45:95:A5:
1F:01:15:1E:B9:C9:47:80
Signature Algorithm: ecdsa-with-SHA384
Signature Value:
30:66:02:31:00:f9:1e:bb:35:21:fd:67:26:1b:fd:ed:93:47:fe:28:b7:a7:0a:16:
ec:33:18:5d:a3:26:7b:40:de:fa:a8:39:8e:03:5b:6b:e4:85:35:aa:b7:37:49:86:
ba:a1:b5:99:ac:02:31:00:96:cd:6d:63:cc:53:94:3f:ad:d1:c4:51:cb:72:a9:51:
68:4d:d9:c1:7e:29:f2:47:0d:a1:14:2a:a6:ae:ac:04:93:e2:5a:63:3d:46:d3:2f:
f2:c0:d4:6d:b4:7d:ba:a4
1109022219 | 2026-09-30T00:40:55
Unknown version. Resolver name: dns-slave150
1109022219 | 2026-09-29T02:11:54
Unknown version. Resolver name: dns-slave150
1937787527 | 2026-09-08T07:49:03
220 mail.takakura.com ESMTP 250-mail.takakura.com 250-PIPELINING 250-SIZE 51200000 250-ETRN 250-STARTTLS 250-ENHANCEDSTATUSCODES 250-8BITMIME 250-DSN 250-SMTPUTF8 250 CHUNKING
SSL Certificate
Certificate:
Data:
Version: 3 (0x2)
Serial Number:
06:96:85:13:ea:05:5c:74:29:be:fd:00:70:42:1e:0f:80:29
Signature Algorithm: ecdsa-with-SHA384
Issuer: C=US, O=Let's Encrypt, CN=YE1
Validity
Not Before: Sep 7 12:30:37 2026 GMT
Not After : Dec 6 12:30:36 2026 GMT
Subject: CN=mail.takakura.com
Subject Public Key Info:
Public Key Algorithm: id-ecPublicKey
Public-Key: (256 bit field, 128 bit security level)
pub:
04:f6:dc:55:a5:a7:e2:f6:14:d6:a5:5e:e3:81:86:38:
9f:35:35:c6:9d:c3:ee:44:4f:60:ca:c1:74:00:5c:b3:
71:42:28:96:41:be:d5:2c:6a:8d:32:54:ae:d6:90:bf:
a9:80:bb:c7:ce:d0:88:eb:4f:fb:a3:87:be:3d:83:0b:
c8
ASN1 OID: prime256v1
NIST CURVE: P-256
X509v3 extensions:
X509v3 Key Usage: critical
Digital Signature
X509v3 Extended Key Usage:
TLS Web Server Authentication
X509v3 Basic Constraints: critical
CA:FALSE
X509v3 Subject Key Identifier:
34:70:16:4F:B3:1B:26:27:46:3A:05:D6:D1:69:D7:04:EB:7D:52:F5
X509v3 Authority Key Identifier:
BB:20:CA:47:0B:FE:D7:E5:9C:F9:8F:09:2A:A3:8C:37:45:B1:BC:D8
Authority Information Access:
CA Issuers - URI:http://ye1.i.lencr.org/
X509v3 Subject Alternative Name:
DNS:mail.takakura.com
X509v3 Certificate Policies:
Policy: 2.23.140.1.2.1
X509v3 CRL Distribution Points:
Full Name:
URI:http://ye1.c.lencr.org/42.crl
CT Precertificate SCTs:
Signed Certificate Timestamp:
Version : v1 (0x0)
Log ID : CB:38:F7:15:89:7C:84:A1:44:5F:5B:C1:DD:FB:C9:6E:
F2:9A:59:CD:47:0A:69:05:85:B0:CB:14:C3:14:58:E7
Timestamp : Sep 7 13:29:07.685 2026 GMT
Extensions: none
Signature : ecdsa-with-SHA256
30:44:02:20:5B:55:6D:16:63:1D:62:92:A5:F4:DD:EF:
E0:3A:26:DB:B5:42:28:F7:06:D2:69:F7:57:32:15:E8:
77:FA:ED:10:02:20:1C:DB:7C:D5:7D:B2:72:E9:FB:19:
CB:C4:B8:EE:45:38:73:4C:BE:2E:22:7E:D2:D8:5F:8F:
1A:37:A4:E0:C7:AE
Signed Certificate Timestamp:
Version : v1 (0x0)
Log ID : 6C:FE:50:19:43:A8:5E:A9:16:BC:52:D1:33:E4:DC:C9:
1E:F1:41:1C:7D:25:84:20:D1:73:80:9E:18:18:EB:3A
Timestamp : Sep 7 13:29:08.662 2026 GMT
Extensions: 00:00:05:00:2F:7C:A1:FB
Signature : ecdsa-with-SHA256
30:46:02:21:00:9D:5C:C9:17:92:89:EB:17:A9:AC:4A:
D8:E4:70:8F:CE:D7:41:DD:25:08:DA:80:45:ED:FF:CC:
8F:D2:0E:0C:7C:02:21:00:F5:17:27:9D:4D:92:F2:66:
8A:C9:62:B1:AF:F8:8D:D5:D2:4D:2B:9B:4D:45:95:A5:
1F:01:15:1E:B9:C9:47:80
Signature Algorithm: ecdsa-with-SHA384
Signature Value:
30:66:02:31:00:f9:1e:bb:35:21:fd:67:26:1b:fd:ed:93:47:fe:28:b7:a7:0a:16:
ec:33:18:5d:a3:26:7b:40:de:fa:a8:39:8e:03:5b:6b:e4:85:35:aa:b7:37:49:86:
ba:a1:b5:99:ac:02:31:00:96:cd:6d:63:cc:53:94:3f:ad:d1:c4:51:cb:72:a9:51:
68:4d:d9:c1:7e:29:f2:47:0d:a1:14:2a:a6:ae:ac:04:93:e2:5a:63:3d:46:d3:2f:
f2:c0:d4:6d:b4:7d:ba:a4
362744253 | 2026-09-30T23:06:09
* OK [CAPABILITY IMAP4rev1 LOGIN-REFERRALS ID ENABLE IDLE SASL-IR LITERAL+ AUTH=PLAIN AUTH=LOGIN] Dovecot ready.
* CAPABILITY IMAP4rev1 LOGIN-REFERRALS ID ENABLE IDLE SASL-IR LITERAL+ AUTH=PLAIN AUTH=LOGIN
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.
SSL Certificate
Certificate:
Data:
Version: 3 (0x2)
Serial Number:
06:96:85:13:ea:05:5c:74:29:be:fd:00:70:42:1e:0f:80:29
Signature Algorithm: ecdsa-with-SHA384
Issuer: C=US, O=Let's Encrypt, CN=YE1
Validity
Not Before: Sep 7 12:30:37 2026 GMT
Not After : Dec 6 12:30:36 2026 GMT
Subject: CN=mail.takakura.com
Subject Public Key Info:
Public Key Algorithm: id-ecPublicKey
Public-Key: (256 bit field, 128 bit security level)
pub:
04:f6:dc:55:a5:a7:e2:f6:14:d6:a5:5e:e3:81:86:38:
9f:35:35:c6:9d:c3:ee:44:4f:60:ca:c1:74:00:5c:b3:
71:42:28:96:41:be:d5:2c:6a:8d:32:54:ae:d6:90:bf:
a9:80:bb:c7:ce:d0:88:eb:4f:fb:a3:87:be:3d:83:0b:
c8
ASN1 OID: prime256v1
NIST CURVE: P-256
X509v3 extensions:
X509v3 Key Usage: critical
Digital Signature
X509v3 Extended Key Usage:
TLS Web Server Authentication
X509v3 Basic Constraints: critical
CA:FALSE
X509v3 Subject Key Identifier:
34:70:16:4F:B3:1B:26:27:46:3A:05:D6:D1:69:D7:04:EB:7D:52:F5
X509v3 Authority Key Identifier:
BB:20:CA:47:0B:FE:D7:E5:9C:F9:8F:09:2A:A3:8C:37:45:B1:BC:D8
Authority Information Access:
CA Issuers - URI:http://ye1.i.lencr.org/
X509v3 Subject Alternative Name:
DNS:mail.takakura.com
X509v3 Certificate Policies:
Policy: 2.23.140.1.2.1
X509v3 CRL Distribution Points:
Full Name:
URI:http://ye1.c.lencr.org/42.crl
CT Precertificate SCTs:
Signed Certificate Timestamp:
Version : v1 (0x0)
Log ID : CB:38:F7:15:89:7C:84:A1:44:5F:5B:C1:DD:FB:C9:6E:
F2:9A:59:CD:47:0A:69:05:85:B0:CB:14:C3:14:58:E7
Timestamp : Sep 7 13:29:07.685 2026 GMT
Extensions: none
Signature : ecdsa-with-SHA256
30:44:02:20:5B:55:6D:16:63:1D:62:92:A5:F4:DD:EF:
E0:3A:26:DB:B5:42:28:F7:06:D2:69:F7:57:32:15:E8:
77:FA:ED:10:02:20:1C:DB:7C:D5:7D:B2:72:E9:FB:19:
CB:C4:B8:EE:45:38:73:4C:BE:2E:22:7E:D2:D8:5F:8F:
1A:37:A4:E0:C7:AE
Signed Certificate Timestamp:
Version : v1 (0x0)
Log ID : 6C:FE:50:19:43:A8:5E:A9:16:BC:52:D1:33:E4:DC:C9:
1E:F1:41:1C:7D:25:84:20:D1:73:80:9E:18:18:EB:3A
Timestamp : Sep 7 13:29:08.662 2026 GMT
Extensions: 00:00:05:00:2F:7C:A1:FB
Signature : ecdsa-with-SHA256
30:46:02:21:00:9D:5C:C9:17:92:89:EB:17:A9:AC:4A:
D8:E4:70:8F:CE:D7:41:DD:25:08:DA:80:45:ED:FF:CC:
8F:D2:0E:0C:7C:02:21:00:F5:17:27:9D:4D:92:F2:66:
8A:C9:62:B1:AF:F8:8D:D5:D2:4D:2B:9B:4D:45:95:A5:
1F:01:15:1E:B9:C9:47:80
Signature Algorithm: ecdsa-with-SHA384
Signature Value:
30:66:02:31:00:f9:1e:bb:35:21:fd:67:26:1b:fd:ed:93:47:fe:28:b7:a7:0a:16:
ec:33:18:5d:a3:26:7b:40:de:fa:a8:39:8e:03:5b:6b:e4:85:35:aa:b7:37:49:86:
ba:a1:b5:99:ac:02:31:00:96:cd:6d:63:cc:53:94:3f:ad:d1:c4:51:cb:72:a9:51:
68:4d:d9:c1:7e:29:f2:47:0d:a1:14:2a:a6:ae:ac:04:93:e2:5a:63:3d:46:d3:2f:
f2:c0:d4:6d:b4:7d:ba:a4