Mail domain report: manutd.com

SPF

warn

SPF record published

Found

Record: v=spf1 include:spf.mandrillapp.com include:spf.mppglobal.com include:sendgrid.net include:mailgun.org include:_spf.qualtrics.com ?all
DNS lookups: 10 of 10
Void lookups: 0 of 2

Checks

✓ No deprecated ptr mechanism #1

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

SPF record needs 10 DNS lookups (limit is 10).
!

Ends with ?all (neutral)

SPF record uses ?all (neutral), which gives no protection against unauthorized senders. Use -all or ~all instead.

#3
✓ 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

pass

p=reject (_dmarc.manutd.com)

Found

Record: v=DMARC1;p=reject;adkim=s;pct=100;rua=mailto:dmarc@nt8rs15k.uriports.com;ruf=mailto:dmarc@nt8rs15k.uriports.com;fo=1
Found at: _dmarc.manutd.com
External report address: mailto:dmarc@nt8rs15k.uriports.com (authorized)

Tag	Value	Meaning
v	DMARC1	Version
p	reject	Policy
pct	100	Percentage of mail the policy applies to
rua	mailto:dmarc@nt8rs15k.uriports.com	Aggregate report addresses
ruf	mailto:dmarc@nt8rs15k.uriports.com	Failure report addresses
adkim	s	DKIM alignment (r = relaxed, s = strict)
fo	1	Failure reporting options

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:dmarc@nt8rs15k.uriports.com
✓ Subdomain policy: reject #20

Subdomains are covered by policy 'reject'.
✓ External report addresses authorized #29

Report addresses in other domains have published their authorization.

DKIM

warn

Selectors: s1, s2

Found

Selectors: s1, s2
_domainkey: NOERROR

Selector	Key	Flags
s1	RSA 2048 bits
s2	RSA 1024 bits

Checks

✓ Keys found: s1, s2 #7

DKIM keys found for this domain with selectors: s1, s2
!

1024-bit DKIM key

1024-bit RSA keys are the minimum and are considered weak today: s2 (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

5 mail servers

Found

Priority	Host	Records	Reverse DNS
1	manutd-com.mail.protection.outlook.com	A 52.101.89.0 A 52.101.89.2 A 52.101.99.0 A 52.101.89.18	mail-lo2p265cu02300.inbound.protection.outlook.com ✓ mail-lo3p265cu00302.inbound.protection.outlook.com ✓ mail-cwxp265cu00600.inbound.protection.outlook.com ✓ mail-lo3p265cu00502.inbound.protection.outlook.com ✓
10	avscan-alpha.visp.viatel.net	(does not resolve)
10	avscan-beta.visp.viatel.net	(does not resolve)
100	relay-alpha.visp.viatel.net	(does not resolve)
100	relay-beta.visp.viatel.net	(does not resolve)

Checks

✓ 5 MX records #9

Found 5 MX records for this domain.
!

Hosts without IP addresses

The following MX hosts could not be resolved to IP addresses: avscan-alpha.visp.viatel.net, avscan-beta.visp.viatel.net, relay-alpha.visp.viatel.net, relay-beta.visp.viatel.net

#10
!

Hosts without IPv6

The following MX hosts could not be resolved to IPv6 addresses: manutd-com.mail.protection.outlook.com, avscan-alpha.visp.viatel.net, avscan-beta.visp.viatel.net, relay-alpha.visp.viatel.net, relay-beta.visp.viatel.net

#11
✓ Redundant MX hosts #12

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

Found 5 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 5 MX hosts

Found

DANE (TLSA records)

MX host	TLSA	DNSSEC
manutd-com.mail.protection.outlook.com	none	-
avscan-alpha.visp.viatel.net	none	-
avscan-beta.visp.viatel.net	none	-
relay-alpha.visp.viatel.net	none	-
relay-beta.visp.viatel.net	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
i

Not used

No MX host publishes TLSA records. DANE lets senders verify your mail server's certificate through DNSSEC; it requires DNSSEC on the MX host's zone.

#36

BIMI

pass

https://vmc.digicert.com/4c97512e-adad-4141-9f72-c521d6a48644.svg

Found

Record: v=BIMI1; l=https://vmc.digicert.com/4c97512e-adad-4141-9f72-c521d6a48644.svg; a=https://vmc.digicert.com/4c97512e-adad-4141-9f72-c521d6a48644.pem;
Found at: default._bimi.manutd.com
Logo: https://vmc.digicert.com/4c97512e-adad-4141-9f72-c521d6a48644.svg
Certificate: https://vmc.digicert.com/4c97512e-adad-4141-9f72-c521d6a48644.pem

Checks

✓ Logo and certificate published #38

BIMI logo: https://vmc.digicert.com/4c97512e-adad-4141-9f72-c521d6a48644.svg; certificate: https://vmc.digicert.com/4c97512e-adad-4141-9f72-c521d6a48644.pem
✓ DMARC meets BIMI requirements #39

DMARC is enforced on all mail, as BIMI requires.