office.com

Checked 22 October 2026, 10:05 UTC · via 8.8.8.8
✗Problems found
9 passed 4 warnings 1 failed 2 info

SPF

fail

No SPF record found

Checks

  • ✗
    No SPF record
    No SPF record was found for this domain. SPF is important for preventing email spoofing. Add an SPF record to specify which servers are authorized to send email for your domain.
    #6

DMARC

warn

p=quarantine (_dmarc.office.com)

Found

Record
v=DMARC1; p=quarantine; pct=100; rua=mailto:rua@dmarc.microsoft; ruf=mailto:ruf@dmarc.microsoft; fo=1
Found at
_dmarc.office.com
External report address
mailto:rua@dmarc.microsoft (authorized)
External report address
mailto:ruf@dmarc.microsoft (authorized)
TagValueMeaning
vDMARC1Version
pquarantinePolicy
pct100Percentage of mail the policy applies to
ruamailto:rua@dmarc.microsoftAggregate report addresses
rufmailto:ruf@dmarc.microsoftFailure report addresses
fo1Failure reporting options

Checks

  • !
    Policy: quarantine
    DMARC policy is set to 'quarantine'. Consider upgrading to 'reject' for stronger protection once you've verified legitimate emails are passing authentication.
    #4
  • ✓ Record published #5
    DMARC record exists for this domain.
  • ✓ Valid syntax #17
    DMARC record syntax is valid.
  • ✓ Applies to 100% of mail #18
    DMARC policy applies to all failing mail.
  • ✓ Aggregate reports enabled #19
    Aggregate reports are sent to: mailto:rua@dmarc.microsoft
  • ✓ Subdomain policy: quarantine #20
    Subdomains are covered by policy 'quarantine'.
  • ✓ External report addresses authorized #29
    Report addresses in other domains have published their authorization.

DKIM

warn

No keys found under the checked selectors

Found

Selectors
None found
_domainkey
NOERROR

Checks

  • !
    No key under common selectors
    The _domainkey name exists but no DKIM key was found under the common selectors. Selectors are provider-specific; check yours with -selector.
    #7

DNSSEC

pass

Signed, DS published at parent

Found

DNSKEY records
Yes (2)
DS at parent
Yes
Algorithms
ECDSAP256SHA256 (13)
Key tags
50487, 54223
Signatures valid until
15 December 2026, 14:00 UTC

Checks

  • ✓ Signed, DS published at parent #8
    DNSSEC is enabled for this domain (DNSKEY and DS present), providing additional security for DNS lookups.
  • ✓ Signatures valid until 2026-12-15 #21
    DNSKEY signatures are valid until 2026-12-15T14:00:10Z.

MX

warn

No MX records found

Checks

  • !
    No MX records
    No MX records found. If this domain is used for email, add MX records to specify mail servers. If it never receives mail, publish a null MX ("MX 0 .").
    #9
  • i
    Not protected against spoofing
    The domain has no MX records. If it does not send mail, publish SPF "v=spf1 -all" and DMARC p=reject so nobody can send mail as this domain.
    #28

TLS

warn

MTA-STS testing · no TLS-RPT

Found

MTA-STS record
v=STSv1; id=20180321T030303;
Policy URL
https://mta-sts.office.com/.well-known/mta-sts.txt
Mode
testing
Allowed MX
*.olc.protection.outlook.com
Max age
604800 seconds

Checks

  • ✓ Record published #32
    MTA-STS record found with id 20180321T030303.
  • !
    Policy in testing mode
    With mode: testing, senders only report TLS problems (via TLS-RPT) and still deliver without TLS. Switch to mode: enforce once reports are clean.
    #33

BIMI

info

No BIMI record

Checks

  • i
    Not configured
    BIMI shows your logo next to your mail in supporting mail clients. It requires DMARC enforcement.
    #38