Mail domain report: pentair.com

SPF

warn

SPF record published

Found

Record: v=spf1 ip4:12.104.201.0/24 ip4:12.178.18.150 ip4:13.111.0.0/18 ip4:23.21.73.218 ip4:23.21.109.197 ip4:23.21.109.212 ip4:23.29.98.208/28 ip4:23.103.128.0/19 ip4:23.103.191.0/24 ip4:23.103.198.0/23 ip4:23.103.200.0/21 ip4:23.103.208.0/21 ip4:23.253.182.0/23 ip4:34.225.96.145 ip4:35.157.16.31 ip4:37.148.180.0/25 ip4:37.188.97.188 ip4:40.92.0.0/14 ip4:40.107.0.0/16 ip4:52.100.0.0/14 ip4:104.47.0.0/17 ip4:41.74.192.0/20 ip4:50.23.218.192/27 ip4:18.158.220.29 include:spf1.pentair.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 #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.
!

Broad IP ranges

These ranges authorize tens of thousands of addresses or more: ip4:40.92.0.0/14, ip4:52.100.0.0/14. Check that you really own and send from all of them.

#27

DMARC

pass

p=reject (_dmarc.pentair.com)

Found

Record: v=DMARC1; p=reject; rua=mailto:dmarc-aggregate@pentair.com; ruf=mailto:dmarc-forensic@pentair.com; pct=100; fo=0
Found at: _dmarc.pentair.com

Tag	Value	Meaning
v	DMARC1	Version
p	reject	Policy
pct	100	Percentage of mail the policy applies to
rua	mailto:dmarc-aggregate@pentair.com	Aggregate report addresses
ruf	mailto:dmarc-forensic@pentair.com	Failure report addresses
fo	0	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-aggregate@pentair.com
✓ Subdomain policy: reject #20

Subdomains are covered by policy 'reject'.
✓ Report addresses in own domain #29

All report addresses are in your own organizational domain.

DKIM

warn

Selectors: default, mail, k1, selector1, selector2, mx, s1, s2

Found

Selectors: default, mail, k1, selector1, selector2, mx, s1, s2
_domainkey: NOERROR

Selector	Key	Flags
default	RSA 2048 bits
mail	RSA 1024 bits
k1	RSA 1024 bits
selector1	RSA 2048 bits
selector2	RSA 2048 bits
mx	RSA 1024 bits
s1	RSA 2048 bits
s2	RSA 1024 bits

Checks

✓ Keys found: default, mail, k1, selector1, selector2, mx, s1, s2 #7

DKIM keys found for this domain with selectors: default, mail, k1, selector1, selector2, mx, s1, s2
!

1024-bit DKIM key

1024-bit RSA keys are the minimum and are considered weak today: mail (1024 bits), k1 (1024 bits), mx (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

1 mail server

Found

Priority	Host	Records	Reverse DNS
10	pentair-com.mail.protection.outlook.com	A 52.101.50.1 A 52.101.42.84 A 52.101.42.170 A 52.101.194.164 AAAA 2a01:111:f403:c95d:: AAAA 2a01:111:f403:f90b::2 AAAA 2a01:111:f403:f904::d AAAA 2a01:111:f403:c946::18	mail-co1pr05cu00401.inbound.protection.outlook.com ✓ mail-co1pr02cu00204.inbound.protection.outlook.com ✓ mail-mw5pr21cu00102.inbound.protection.outlook.com ✓ mail-ch5pr04cu00204.inbound.protection.outlook.com ✓ mail-ph8pr05cu00300.inbound.protection.outlook.com ✓ mail-bnypr02cu00102.inbound.protection.outlook.com ✓ mail-dm2pr03cu00105.inbound.protection.outlook.com ✓ mail-ch5pr04cu00200.inbound.protection.outlook.com ✓

Checks

✓ 1 MX record #9

Found 1 MX records for this domain.
✓ All hosts resolve #10

All MX records resolve to valid IP addresses.
✓ All hosts have IPv6 #11

All MX records resolve to IPv6 addresses.
!

Single MX host, no backup

Only one MX record found. For better email reliability, consider adding at least one backup MX server.

#12
✓ At most 5 MX records #13

Found 1 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 8 MX addresss have a PTR record that resolves back to them.

TLS

warn

no MTA-STS · no TLS-RPT · DANE on 0 of 1 MX hosts

Found

DANE (TLSA records)

MX host	TLSA	DNSSEC
pentair-com.mail.protection.outlook.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
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

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