i7mail.net
Issued by R3
About this certificate
This digital certificate with serial number 03:9b:f8:ab:f7:1a:80:cc:78:26:42:76:2c:ab:38:42:90:d0 was issued on by Let's Encrypt.
With 6 subject alternative names this certificate can be used to secure multiple fqdn's. This certificate has already expired and will cause a warning or error message in the browser it's still listed on this site to allow you to look back on previously issued certificates. If we have found any compliance issues with this certificate they will be shown below. I hope this certificate review is providing you the detailed information in a simple form you where looking for.
We have idenified some issues with this certificate:
- DV certificate contains a subject common name, this is not recommended. If certificate policy 2.23.140.1.2.1 (CA/B BR domain validated) is included, only country and/or common name is allowed in SubjectDN. (BRs: 7.1.2.7.2)
- Subscriber certificates use of Subject Key Identifier is NOT RECOMMENDED (BRs v2: 7.1.2.7.6)
- Subscriber Certificate: commonName is NOT RECOMMENDED. (BRs: 7.1.2.7.1)
Certificate Subject
CN=i7mail.net
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:9b:f8:ab:f7:1a:80:cc:78:26:42:76:2c:ab:38:42:90:d0Serial Number (int): 314411166105598635965546929854421542277328
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: 13:59:19:53:cf:57:fb:56:dd:80:bc:a7:7c:cf:04:81:fb:28:4b:37
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6
Fingerprint (sha1): 52:5b:36:b9:16:37:db:0e:25:a8:b9:b6:86:09:bd:e0:42:0d:38:21
Fingerprint (sha256): 4b:87:8e:72:62:c4:33:92:df:61:85:1b:36:69:34:97:ef:b8:00:72:67:6a:8c:53:b0:11:91:ea:b1:9e:3f:47
Issuing Certificate URL: http://r3.i.lencr.org/
Revocation information
OCSP Server: http://r3.o.lencr.orgCheck the revocation status for certificate i7mail.net
6
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for i7mail.net
Public Key Algorithm
RSA
Key Size
2048
Signature Algorithm
SHA256 with RSA
Key Usage
Digital Signature
Key Encipherment
Extended Key Usages
Server Authentication
Client Authentication
Extensions
9 extensions
No
unhandled critical extensions
CA Certificate
This is not a CA certificate
Subject Alternative Names
autoconfig.i7mail.net
autodiscover.i7mail.net
i7mail.com
i7mail.net
www.i7mail.com
www.i7mail.net
autodiscover.i7mail.net
i7mail.com
i7mail.net
www.i7mail.com
www.i7mail.net
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Certificate
The complete raw certificate details for i7mail.net in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIFPjCCBCagAwIBAgISA5v4q/cagMx4JkJ2LKs4QpDQMA0GCSqGSIb3DQEBCwUA MDIxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MQswCQYDVQQD EwJSMzAeFw0yNDAxMTIwOTEyNDJaFw0yNDA0MTEwOTEyNDFaMBUxEzARBgNVBAMT Cmk3bWFpbC5uZXQwggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQClqghK 08D+6AtgxRD85LzPMbgilyTh59LZzLkMIodPpmehVE3KmSbcgrOkPwwQQshXxyMc t2OAhV3JKlvSKmgrfpEvIefbFNyZZKejZ+sf7dURvkZXPGFOZI+3eTV/M/y+rDDx OzOyk+wFD4u+KTlIe2kLtbKRsKXVBDfsuZe/dnIPFiUJxRpk+DMX+HAlnTZXdTxl o41nTbL9IKOn+3+q7i1YW91qZKAncdw3TW5Uqb/jrG38pKRObtIUxjUSs0luoP+k VHilLPa1G7GmsFsRqnQNw3Su3QKHhRIcA60YxpEAS3MB+VhxV1gbBHXdNMBFxMUZ ANL8ekRPgGjtmUgZAgMBAAGjggJpMIICZTAOBgNVHQ8BAf8EBAMCBaAwHQYDVR0l BBYwFAYIKwYBBQUHAwEGCCsGAQUFBwMCMAwGA1UdEwEB/wQCMAAwHQYDVR0OBBYE FBNZGVPPV/tW3YC8p3zPBIH7KEs3MB8GA1UdIwQYMBaAFBQusxe3WFbLrlAJQOYf r52LFMLGMFUGCCsGAQUFBwEBBEkwRzAhBggrBgEFBQcwAYYVaHR0cDovL3IzLm8u bGVuY3Iub3JnMCIGCCsGAQUFBzAChhZodHRwOi8vcjMuaS5sZW5jci5vcmcvMHEG A1UdEQRqMGiCFWF1dG9jb25maWcuaTdtYWlsLm5ldIIXYXV0b2Rpc2NvdmVyLmk3 bWFpbC5uZXSCCmk3bWFpbC5jb22CCmk3bWFpbC5uZXSCDnd3dy5pN21haWwuY29t gg53d3cuaTdtYWlsLm5ldDATBgNVHSAEDDAKMAgGBmeBDAECATCCAQUGCisGAQQB 1nkCBAIEgfYEgfMA8QB3ADtTd3U+LbmAToswWwb+QDtn2E/D9Me9AA0tcm/h+tQX AAABjP0o2qoAAAQDAEgwRgIhAMeoUgUVOcidWZuhqUHmEEnBsJaGwOBi+2aKdm5/ dcefAiEA90XEfH4N0rz/1JdNbbeg0qRYDv2QGI4sHsv39kcMJt0AdgBIsONr2qZH NA/lagL6nTDrHFIBy1bdLIHZu7+rOdiEcwAAAYz9KNyXAAAEAwBHMEUCIDqcSvbO MA8T0ICZQYTC1yfMHqhrtUpy0/L3TbhU5/JeAiEA8AMf3LlG3cI7d0oTOZABAmnW NVpauGKxy/doumY8HgcwDQYJKoZIhvcNAQELBQADggEBAJwpdxFHnMgcY+Ioc/wu ZUVhgQGqhTG5pxJJfxENoHRD1J0+u0hRe4su/0Vogvnpzq/zEnBX7PvPWhCZRFTI /yRPrSzYnC28giWPtPJRW8XLS3QaaeX+rq/90KcAcGJl0Ei7F/cLHFqpTknJ25Ft 6KyGe87wBZRP35cs+Ung/8bXpdVMxJHzF+BGGVFFlyGPzjRrEolASiqgv2JrjmG7 OWHxxLLjqnOtFfF+E5IexxgRxOu/037bpUcBlj+FZ+YqFhtWAzKc4jo0lkbWvgl4 O2j9HE2OnmFZBkbR2SBeqSa79RQKPY52JKuQ30kAg3oys5fEyYjoTMeNv9lBeJ3s wo8= -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEApaoIStPA/ugLYMUQ/OS8 zzG4Ipck4efS2cy5DCKHT6ZnoVRNypkm3IKzpD8MEELIV8cjHLdjgIVdySpb0ipo K36RLyHn2xTcmWSno2frH+3VEb5GVzxhTmSPt3k1fzP8vqww8TszspPsBQ+Lvik5 SHtpC7WykbCl1QQ37LmXv3ZyDxYlCcUaZPgzF/hwJZ02V3U8ZaONZ02y/SCjp/t/ qu4tWFvdamSgJ3HcN01uVKm/46xt/KSkTm7SFMY1ErNJbqD/pFR4pSz2tRuxprBb Eap0DcN0rt0Ch4USHAOtGMaRAEtzAflYcVdYGwR13TTARcTFGQDS/HpET4Bo7ZlI GQIDAQAB -----END PUBLIC KEY-----
ASN.1 decoded
[c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . [c:2|t:0|true] OtherName . . . . . . . . . . . . [c:0|t:2|false] INTEGER 2 . . . . . . . . [c:0|t:2|false] INTEGER 314411166105598635965546929854421542277328 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.11 (sha256WithRSAEncryption) . . . . . . . . . . . . [c:0|t:5|false] NULL . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.6 (countryName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'US' . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.10 (organizationName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'Let's Encrypt' . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.3 (commonName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'R3' . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-01-12 09:12:42 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-04-11 09:12:41 +0000 UTC . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.3 (commonName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'i7mail.net' . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.1 (rsaEncryption) . . . . . . . . . . . . . . . . [c:0|t:5|false] NULL . . . . . . . . . . . . [c:0|t:3|false] BIT STRING (2160 bits) . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 20913166416769243867424865123952772953619981720623556879940685938073975979469759037446482846557050255765360320312689535758651371543506565750309619211983332336331202993742727187129123845642667157343606723353137349547300081827469418545780347096657792679314770577459234858624188830025459325806898399577204205401486847009648590070563622311986792800397747353563820938299239524194982301598046685849254915255461949949390955804518869607162767708485213581271270020154724366288436669141632324479167660360868602464354966647759883965506779147502787981645965749782043552596613075280964206964045967763734917950993423219269152884761 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 65537 . . . . . . . . [c:2|t:3|true] ORAddress . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.15 (keyUsage) . . . . . . . . . . . . . . . . . . . . [c:0|t:1|false] BOOLEAN true . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (4 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:3|false] BIT STRING (3 bits) 05a0 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.37 (extKeyUsage) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (22 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.3.1 (serverAuth) . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.3.2 (clientAuth) . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.19 (basicConstraints) . . . . . . . . . . . . . . . . . . . . [c:0|t:1|false] BOOLEAN true . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (2 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.14 (subjectKeyIdentifier) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (22 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (20 bytes) 13591953cf57fb56dd80bca77ccf0481fb284b37 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.35 (authorityKeyIdentifier) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (24 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|false] OtherName 142eb317b75856cbae500940e61faf9d8b14c2c6 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.1.1 (authorityInfoAccess) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (73 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.48.1 (ocsp) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://r3.o.lencr.org' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.48.2 (caIssuers) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://r3.i.lencr.org/' . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.17 (subjectAltName) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (106 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'autoconfig.i7mail.net' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'autodiscover.i7mail.net' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'i7mail.com' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'i7mail.net' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.i7mail.com' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.i7mail.net' . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.32 (certificatePolicies) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (12 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.23.140.1.2.1 (Domain Validation Certificates Policy) . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.4.1.11129.2.4.2 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (246 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes) 00f10077003b5377753e2db9804e8b305b06fe403b67d84fc3f4c7bd000d2d726fe1fad4170000018cfd28daaa0000040300483046022100c7a852051539c89d599ba1a941e61049c1b09686c0e062fb668a766e7f75c79f022100f745c47c7e0dd2bcffd4974d6db7a0d2a4580efd90188e2c1ecbf7f6470c26dd00760048b0e36bdaa647340fe56a02fa9d30eb1c5201cb56dd2c81d9bbbfab39d884730000018cfd28dc97000004030047304502203a9c4af6ce300f13d080994184c2d727cc1ea86bb54a72d3f2f74db854e7f25e022100f0031fdcb946ddc23b774a133990010269d6355a5ab862b1cbf768ba663c1e07 . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.11 (sha256WithRSAEncryption) . . . . . . . . [c:0|t:5|false] NULL . . . . [c:0|t:3|false] BIT STRING (2048 bits) 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