Mail domain report: whatsapp.com

SPF

pass

SPF record published

Found

Record: v=spf1 include:_spf.fb.com include:facebookmail.com -all
DNS lookups: 6 of 10
Void lookups: 0 of 2

Checks

✓ No deprecated ptr mechanism #1

No ptr mechanism found in SPF record.
✓ 6 of 10 DNS lookups #2

SPF record needs 6 DNS lookups (limit is 10).
✓ Ends with -all #3

SPF record properly uses -all to restrict unauthorized senders.
✓ Record published #6

SPF record exists for this domain.
✓ Single record #16

Exactly one SPF record is published.
✓ Valid syntax #25

All SPF mechanisms and modifiers are valid.
✓ No void lookups #26

All include/redirect targets exist.
✓ No overly broad IP ranges #27

All ip4/ip6 ranges are narrow enough.

DMARC

warn

p=reject (_dmarc.whatsapp.com)

Found

Record: v=DMARC1; p=reject; rua=mailto:a@dmarc.facebookmail.com; pct=100
Found at: _dmarc.whatsapp.com
External report address: mailto:a@dmarc.facebookmail.com (not authorized)

Tag	Value	Meaning
v	DMARC1	Version
p	reject	Policy
pct	100	Percentage of mail the policy applies to
rua	mailto:a@dmarc.facebookmail.com	Aggregate report addresses

Checks

✓ Policy: reject #4

DMARC policy is set to 'reject', which provides the strongest protection against email spoofing.
✓ 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:a@dmarc.facebookmail.com
✓ Subdomain policy: reject #20

Subdomains are covered by policy 'reject'.
!

Report address not authorized

These report addresses are in another domain that has not agreed to receive your reports, so receivers will not send them: mailto:a@dmarc.facebookmail.com (needs whatsapp.com._report._dmarc.dmarc.facebookmail.com). Ask the report provider to publish the record, or check the address.

#29

DKIM

warn

Selectors: mail, google

Found

Selectors: mail, google
_domainkey: NOERROR

Selector	Key	Flags
mail	RSA 1024 bits
google	RSA 1024 bits

Checks

✓ Keys found: mail, google #7

DKIM keys found for this domain with selectors: mail, google
!

1024-bit DKIM key

1024-bit RSA keys are the minimum and are considered weak today: mail (1024 bits), google (1024 bits). Rotate to a 2048-bit key.

#23
✓ No problematic flags #24

No keys in test mode, revoked, or limited to SHA-1.

DNSSEC

warn

Not signed

Found

DNSKEY records: No (0)
DS at parent: No

Checks

!

Not enabled

DNSSEC is not enabled for this domain. Consider enabling DNSSEC to protect against DNS spoofing attacks.

#8

MX

warn

4 mail servers

Found

Priority	Host	Records	Reverse DNS
10	mxa-00082601.gslb.pphosted.com	A 67.231.153.30	mx0b-00082601.pphosted.com ✓
10	mxb-00082601.gslb.pphosted.com	A 67.231.153.30	mx0b-00082601.pphosted.com ✓
20	mx0a-00082601.pphosted.com	A 67.231.145.42	mx0a-00082601.pphosted.com ✓
20	mx0b-00082601.pphosted.com	A 67.231.153.30	mx0b-00082601.pphosted.com ✓

Checks

✓ 4 MX records #9

Found 4 MX records for this domain.
✓ All hosts resolve #10

All MX records resolve to valid IP addresses.
!

Hosts without IPv6

The following MX hosts could not be resolved to IPv6 addresses: mxa-00082601.gslb.pphosted.com, mxb-00082601.gslb.pphosted.com, mx0a-00082601.pphosted.com, mx0b-00082601.pphosted.com

#11
✓ Redundant MX hosts #12

Found 4 MX records, which provides redundancy for email delivery.
✓ At most 5 MX records #13

Found 4 MX records, which is within the recommended range (1-5).
✓ No localhost targets #14

No MX records pointing to localhost found.
✓ No private IP addresses #15

No MX records resolving to private IP addresses found.
✓ No CNAME targets #22

No MX records point to a CNAME.
✓ Reverse DNS confirmed #30

All 4 MX addresss have a PTR record that resolves back to them.

TLS

warn

no MTA-STS · no TLS-RPT · DANE on 0 of 4 MX hosts (lookup failed for 2)

Found

DANE (TLSA records)

MX host	TLSA	DNSSEC
mxa-00082601.gslb.pphosted.com	DNS query for _25._tcp.mxa-00082601.gslb.pphosted.com failed: read udp 46.225.38.91:51757->8.8.8.8:53: i/o timeout	-
mxb-00082601.gslb.pphosted.com	DNS query for _25._tcp.mxb-00082601.gslb.pphosted.com failed: read udp 46.225.38.91:59211->8.8.8.8:53: i/o timeout	-
mx0a-00082601.pphosted.com	none	-
mx0b-00082601.pphosted.com	none	-

Checks

!

Not configured

MTA-STS is not configured, so other mail servers fall back to unencrypted delivery when TLS fails or is stripped by an attacker. Publish a _mta-sts TXT record and a policy at https://mta-sts.<domain>/.well-known/mta-sts.txt.

#32
i

Not configured

TLS-RPT lets senders report TLS delivery problems to you. It is most useful together with MTA-STS or DANE.

#35
!

Not all MX hosts use DANE

These MX hosts publish no TLSA records, so mail to them is not protected by DANE: mx0a-00082601.pphosted.com, mx0b-00082601.pphosted.com.

#36

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