SSL-Tools

SSL check results of business.facebook.com

NEW You can also bulk check multiple servers.

Discover if the mail servers for business.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 Fri, 24 Apr 2026 09:55:52 +0000

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

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

/mailservers/business.facebook.com

Servers

Incoming Mails

These servers are responsible for incoming mails to @business.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
4 s
smtpin.vvv.facebook.com
66.220.149.251
 10
supported
msgin.facebookmail.com
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
not found
  • TLSv1.2
  • SSLv3
11 s

Outgoing Mails

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

Certificates

First seen at:

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

Certificate chain
Subject
Country (C)
  • US
State (ST)
  • California
Locality (L)
  • Menlo Park
Organization (O)
  • Meta Platforms, 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
Common Name (CN)
  • DigiCert Global G2 TLS RSA SHA256 2020 CA1
validity period
Not valid before
2025-07-28
Not valid after
2026-07-28
This certifcate has been verified for the following usages:
  • Digital Signature
  • Key Encipherment
  • TLS Web Server Authentication
  • TLS Web Client Authentication
Fingerprints
SHA256
D7:A9:A6:6C:D2:EF:F1:D9:A8:26:EA:BC:CA:01:3B:D0:8E:2C:8F:C1:4A:16:88:6B:7E:18:7E:4B:F2:1B:AC:C7
SHA1
BE:63:42:2F:4C:6C:E9:6B:F0:0F:75:AB:07:B1:84:87:7C:3B:8C:E8
X509v3 extensions
authorityKeyIdentifier
  • keyid:74:85:80:C0:66:C7:DF:37:DE:CF:BD:29:37:AA:03:1D:BE:ED:CD:17
subjectKeyIdentifier
  • 83:32:41:24:7F:83:46:58:2C:30:4B:4C:3F:1E:BA:17:B0:9B:4D:52
certificatePolicies
  • Policy: 2.23.140.1.2.2
  • CPS: http://www.digicert.com/CPS
crlDistributionPoints
  • Full Name:
  • URI:http://crl3.digicert.com/DigiCertGlobalG2TLSRSASHA2562020CA1-1.crl
  • Full Name:
  • URI:http://crl4.digicert.com/DigiCertGlobalG2TLSRSASHA2562020CA1-1.crl
authorityInfoAccess
  • OCSP - URI:http://ocsp.digicert.com
  • CA Issuers - URI:http://cacerts.digicert.com/DigiCertGlobalG2TLSRSASHA2562020CA1-1.crt
ct_precert_scts
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : D7:6D:7D:10:D1:A7:F5:77:C2:C7:E9:5F:D7:00:BF:F9:
  • 82:C9:33:5A:65:E1:D0:B3:01:73:17:C0:C8:C5:69:77
  • Timestamp : Jul 28 17:34:33.299 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:44:02:20:04:69:0C:0C:84:7B:3B:FC:F2:E5:0B:0D:
  • 82:71:CD:60:61:8D:21:9E:4E:62:94:12:73:4B:60:7E:
  • CB:4F:A6:69:02:20:67:9D:08:37:F8:D7:82:40:20:5B:
  • D9:DF:DB:AF:8D:83:61:E9:08:A1:88:8D:D6:50:B4:15:
  • 3B:14:F4:C1:97:DF
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : C2:31:7E:57:45:19:A3:45:EE:7F:38:DE:B2:90:41:EB:
  • C7:C2:21:5A:22:BF:7F:D5:B5:AD:76:9A:D9:0E:52:CD
  • Timestamp : Jul 28 17:34:33.345 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:46:02:21:00:82:F8:96:F6:AD:A0:A4:99:0A:B5:69:
  • 8C:84:72:08:D6:FC:FB:DD:DD:0A:69:7A:B1:26:B0:82:
  • 29:AC:E5:B6:4A:02:21:00:D9:02:E8:42:CF:68:FD:E5:
  • FE:17:D7:FB:0B:D3:0F:73:7C:B4:A0:0A:D4:96:17:5B:
  • CF:17:9A:31:FF:AF:0A:3A
  • Signed Certificate Timestamp:
  • Version : v1 (0x0)
  • Log ID : 94:4E:43:87:FA:EC:C1:EF:81:F3:19:24:26:A8:18:65:
  • 01:C7:D3:5F:38:02:01:3F:72:67:7D:55:37:2E:19:D8
  • Timestamp : Jul 28 17:34:33.366 2025 GMT
  • Extensions: none
  • Signature : ecdsa-with-SHA256
  • 30:45:02:20:6C:68:F7:2F:04:3E:0C:15:E9:1D:15:93:
  • 44:72:9E:E3:70:95:39:F0:A9:DC:5C:B0:2F:34:4B:5C:
  • D0:4B:73:F7:02:21:00:90:87:7F:D4:82:54:0C:50:D1:
  • 30:74:7E:34:FC:B4:C7:89:16:80:DF:0E:96:BD:3D:5F:
  • FD:46:3A:B3:04:77:BE