Mail domain report: sonatype.com

SPF

pass

SPF record published

Found

Record: v=spf1 mx ip4:209.167.231.0/24 ip4:66.48.80.0/25 ip4:204.92.21.0/25 ip4:192.174.90.242 include:_spf.google.com include:u1891087.wl.sendgrid.net include:em6694.sonatype.com include:em200.sonatype.com include:mail.zendesk.com include:1958393.spf10.hubspotemail.net -all
DNS lookups: 7 of 10
Void lookups: 0 of 2

Checks

✓ No deprecated ptr mechanism #1

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

SPF record needs 7 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=quarantine (_dmarc.sonatype.com)

Found

Record: v=DMARC1; p=quarantine; pct=100; ruf=mailto:dmarc+ruf@sonatype.com; fo=1; aspf=r; rua=mailto:ohyscx0p@ag.us.dmarcian.com;
Found at: _dmarc.sonatype.com
External report address: mailto:ohyscx0p@ag.us.dmarcian.com (authorized)

Tag	Value	Meaning
v	DMARC1	Version
p	quarantine	Policy
pct	100	Percentage of mail the policy applies to
rua	mailto:ohyscx0p@ag.us.dmarcian.com	Aggregate report addresses
ruf	mailto:dmarc+ruf@sonatype.com	Failure report addresses
aspf	r	SPF alignment (r = relaxed, s = strict)
fo	1	Failure 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:ohyscx0p@ag.us.dmarcian.com
✓ 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

Selectors: google, s1, s2

Found

Selectors: google, s1, s2
_domainkey: NXDOMAIN

Selector	Key	Flags
google	RSA 1024 bits
s1	RSA 2048 bits
s2	RSA 1024 bits

Checks

✓ Keys found: google, s1, s2 #7

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

1024-bit DKIM key

1024-bit RSA keys are the minimum and are considered weak today: google (1024 bits), 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

7 mail servers

Found

Priority	Host	Records	Reverse DNS
1	aspmx.l.google.com	A 142.251.127.27 AAAA 2a00:1450:4001:c21::1b	lcfrai-in-f27.1e100.net ✓ lcfrai-in-f27.1e100.net ✓
5	alt1.aspmx.l.google.com	A 142.250.147.27 AAAA 2a00:1450:4025:c01::1b	rd-in-f27.1e100.net ✓ rd-in-f27.1e100.net ✓
5	alt2.aspmx.l.google.com	A 172.253.152.26 AAAA 2a00:1450:4010:c22::1a	yulpptr-in-f26.1e100.net ✓ yulpptr-in-f26.1e100.net ✓
10	alt3.aspmx.l.google.com	A 192.179.20.26 AAAA 2404:6800:4000:1027::1b	ncboms-in-f26.1e100.net ✓ ncboms-in-f27.1e100.net ✓
10	alt4.aspmx.l.google.com	A 192.178.158.27 AAAA 2404:6800:4013:813::1a	lcdels-in-f27.1e100.net ✓ lcdels-in-f26.1e100.net ✓
32767	ms10280012.msv1.invalid	(does not resolve)
32767	ms24241164.msv1.invalid	(does not resolve)

Checks

✓ 7 MX records #9

Found 7 MX records for this domain.
!

Hosts without IP addresses

The following MX hosts could not be resolved to IP addresses: ms10280012.msv1.invalid, ms24241164.msv1.invalid

#10
!

Hosts without IPv6

The following MX hosts could not be resolved to IPv6 addresses: ms10280012.msv1.invalid, ms24241164.msv1.invalid

#11
✓ Redundant MX hosts #12

Found 7 MX records, which provides redundancy for email delivery.
!

More than 5 MX records

Found 7 MX records, which is more than the recommended maximum of 5. Too many MX records may indicate a misconfiguration.

#13
✓ 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 10 MX addresss have a PTR record that resolves back to them.

TLS

warn

no MTA-STS · no TLS-RPT · DANE on 0 of 7 MX hosts

Found

DANE (TLSA records)

MX host	TLSA	DNSSEC
aspmx.l.google.com	none	-
alt1.aspmx.l.google.com	none	-
alt2.aspmx.l.google.com	none	-
alt3.aspmx.l.google.com	none	-
alt4.aspmx.l.google.com	none	-
ms10280012.msv1.invalid	none	-
ms24241164.msv1.invalid	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

fail

https://www.sonatype.com/hubfs/1-2025_Website-Assets/logos/logo.png

Found

Record: v=BIMI1; l=https://www.sonatype.com/hubfs/1-2025_Website-Assets/logos/logo.png; a=URL of VMC;
Found at: default._bimi.sonatype.com
Logo: https://www.sonatype.com/hubfs/1-2025_Website-Assets/logos/logo.png
Certificate: URL of VMC

Checks

✗

Invalid BIMI record

Mail clients ignore the BIMI record because of: certificate URL "URL of VMC" must use https://.

#38
✓ DMARC meets BIMI requirements #39

DMARC is enforced on all mail, as BIMI requires.