SSL-Tools

SSL check results of facebook.com

NEW You can also bulk check multiple servers.

Discover if the mail servers for facebook.com can be reached through a secure connection.

To establish a secure connection a mail server has to offer STARTTLS (SSL), a trustworthy SSL certificate, support for the Diffie-Hellman-Algorithm to guarantee Perfect Forward Secrecy and must not be vulnerable against the Heartbleed attack. Futhermore we recommend using end-to-end encryption with GnuPG.

Summary

JSON Refresh

Report created Mon, 09 Oct 2023 15:49:29 +0000

We can not guarantee a secure connection to the mailservers of facebook.com!

Please contact the operator of facebook.com and ask him or her to solve this problem. This result stays accessible under the following address:

/mailservers/facebook.com

Servers

Incoming Mails

These servers are responsible for incoming mails to @facebook.com addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
smtpin.vvv.facebook.com
2a03:2880:ff:fffd:face:b00c::686e
Results incomplete
10
unsupported
not checked
DANE
missing
PFS
not checked
Heartbleed
not checked
Weak ciphers
not checked
1 s
smtpin.vvv.facebook.com
69.171.251.251
 10
supported
msgin.facebookmail.com
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
5 s

Outgoing Mails

We have not received any emails from a @facebook.com address so far. Test mail delivery

Certificates

First seen at:

CN=msgin.facebookmail.com,O=Facebook\, Inc.,L=Menlo Park,ST=California,C=US

Certificate chain
Subject
Country (C)
  • US
State (ST)
  • California
Locality (L)
  • Menlo Park
Organization (O)
  • Facebook, Inc.
Common Name (CN)
  • msgin.facebookmail.com
Alternative Names
  • msgin.facebookmail.com
  • msgin-regional.facebookmail.com
  • msgin-regional.vvv.facebook.com
  • msgin.vvv.facebook.com
  • smtpin.vvv.facebook.com
Issuer
Country (C)
  • US
Organization (O)
  • DigiCert Inc
Organizational Unit (OU)
  • www.digicert.com
Common Name (CN)
  • DigiCert SHA2 High Assurance Server CA
validity period
Not valid before
2022-11-14
Not valid after
2023-11-14
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
27:70:3B:03:55:55:5F:38:51:42:86:05:B4:C1:BA:B6:FD:A9:43:67:55:CA:D6:9D:7D:00:4F:3E:4A:3A:B3:A4
SHA1
ED:65:F5:B9:6B:3F:0C:FE:23:0D:33:A0:7C:76:E9:87:D5:EA:B4:CD
X509v3 extensions
authorityKeyIdentifier
  • keyid:51:68:FF:90:AF:02:07:75:3C:CC:D9:65:64:62:A2:12:B8:59:72:3B
subjectKeyIdentifier
  • B9:82:2C:65:2D:36:41:21:3C:B8:42:E0:EA:3E:0A:3D:01:74:E4:FC
crlDistributionPoints
  • Full Name:
  • URI:http://crl3.digicert.com/sha2-ha-server-g6.crl
  • Full Name:
  • URI:http://crl4.digicert.com/sha2-ha-server-g6.crl
certificatePolicies
  • Policy: 2.23.140.1.2.2
  • CPS: http://www.digicert.com/CPS
authorityInfoAccess
  • OCSP - URI:http://ocsp.digicert.com
  • CA Issuers - URI:http://cacerts.digicert.com/DigiCertSHA2HighAssuranceServerCA.crt
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : E8:3E:D0:DA:3E:F5:06:35:32:E7:57:28:BC:89:6B:C9:
  • 03:D3:CB:D1:11:6B:EC:EB:69:E1:77:7D:6D:06:BD:6E
  • Timestamp : Nov 14 20:35:33.013 2022 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:3D:E8:91:E9:E6:04:59:31:40:DC:19:AE:
  • CB:52:6C:71:A3:0D:D1:CC:BA:0B:63:BA:61:F2:35:74:
  • 37:DB:AA:DA:02:21:00:E7:47:13:56:83:E9:FA:CA:24:
  • 5D:ED:72:D4:8F:17:0B:D9:FD:E8:4D:DD:D0:BF:4E:11:
  • 8A:81:F8:F5:37:51:65
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : B3:73:77:07:E1:84:50:F8:63:86:D6:05:A9:DC:11:09:
  • 4A:79:2D:B1:67:0C:0B:87:DC:F0:03:0E:79:36:A5:9A
  • Timestamp : Nov 14 20:35:33.125 2022 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:44:02:20:06:56:73:1E:17:18:A8:3C:1D:5C:6F:D7:
  • 93:31:23:6B:7F:58:EE:31:51:DF:12:4C:52:EA:D3:30:
  • 12:92:91:9E:02:20:1B:F9:DD:B8:69:FB:6B:AE:3D:B0:
  • 05:2B:86:50:EC:E2:A4:43:F8:E3:53:10:C3:72:15:03:
  • 2F:72:FB:94:9F:F5
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : B7:3E:FB:24:DF:9C:4D:BA:75:F2:39:C5:BA:58:F4:6C:
  • 5D:FC:42:CF:7A:9F:35:C4:9E:1D:09:81:25:ED:B4:99
  • Timestamp : Nov 14 20:35:33.074 2022 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:21:00:F1:59:23:BE:85:97:21:F8:C2:65:23:
  • 26:CB:BA:EA:40:5F:7B:E1:6B:36:E6:13:5D:B4:A2:52:
  • 57:CB:46:2F:C1:02:20:7C:B7:CA:56:00:1A:1F:84:A0:
  • 12:B2:C8:43:3E:05:53:7A:CC:85:2E:20:C5:A8:0A:80:
  • 5C:00:50:9B:05:67:90