Email Security for facebook.com
SPF configured · DMARC p=reject · MX 1 record.
++
~/email-security · facebook.comstrong
$ dig +short TXT facebook.com
[resolve] ok
[audit] posture: strong · MX records: 1
mx
10smtpin.vvv.facebook.com
warn
SPFfound
Authorizes senders that may use this domain in MAIL FROM.
lookups1 / 10
- · Missing 'all' mechanism — policy is undefined for unknown senders.
ok
DMARCfound
Tells receivers what to do when SPF or DKIM fail.
policyreject
pct100%
ruamailto:a@dmarc.facebookmail.com
fail
DKIMfound
Public key at default._domainkey — only the 'default' selector was checked.
- · Missing 'p=' public key tag — record may be revoked.
ok
MTA-STSfound
Announces SMTP TLS enforcement policy.
id20191202T113700
ok
TLS-RPTfound
Telemetry destination for SMTP TLS failures.
ruamailto:sts-reports@facebookmail.com
n/a
BIMInot configured
Logo announcement at default._bimi — only the 'default' selector was checked.
- · No BIMI record at 'default._bimi'.
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