Mail domain report: caritas.de

SPF

pass

SPF record published

Found

Record: v=spf1 mx ip4:23.21.109.197 ip4:23.21.109.212 ip4:147.160.167.0/26 ip4:62.75.148.233 ip4:212.62.213.133 ip4:149.72.227.21 ip4:167.89.111.77 ip4:18.198.35.158 ip4:3.65.86.245 ip4:3.78.23.77 ip4:188.94.249.240/28 ip4:188.94.250.248/29 ip4:188.94.251.248/29 ip4:188.94.252.252/30 ip4:185.15.192.32/27 ip4:178.16.56.32/27 ip4:185.15.192.32/28 ip4:153.92.196.160/28 ip4:37.202.1.52/30 ip4:37.202.6.52/30 ip4:217.24.192.0/20 ip4:212.62.194.0/24 ip4:212.62.212.0/24 ip6:2a02:590:1::/48 ip4:195.143.189.218 ip4:80.72.131.27 ip4:35.242.247.107 ip4:34.107.8.58 ip4:185.71.125.0/24 ip4:185.71.127.0/24 ip4:185.71.124.0/24 ip4:217.24.192.0/20 ip4:212.62.194.0/24 ip4:212.62.212.0/24 ip4:82.98.106.76 ip4:82.165.247.19 ip6:2a02:590:1::/48 ip4:80.72.131.24/30 ip4:80.72.140.167 include:amazonses.com include:spf.protection.outlook.com include:_spf-dc55.sapsf.eu include:spf.civilisten.io include:_spf.eu-de-2.cm.net.sap include:spf.crsend.com -all
DNS lookups: 9 of 10
Void lookups: 0 of 2

Checks

✓ No deprecated ptr mechanism #1

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

SPF record needs 9 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.caritas.de)

Found

Record: v=DMARC1; p=quarantine; rua=mailto:dmarc_agg@vali.email
Found at: _dmarc.caritas.de
External report address: mailto:dmarc_agg@vali.email (authorized)

Tag	Value	Meaning
v	DMARC1	Version
p	quarantine	Policy
rua	mailto:dmarc_agg@vali.email	Aggregate report addresses

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:dmarc_agg@vali.email
✓ 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: mail, selector1, s1, s2

Found

Selectors: mail, selector1, s1, s2
_domainkey: NOERROR

Selector	Key	Flags
mail	RSA 1024 bits
selector1	RSA 2048 bits
s1	RSA 2048 bits
s2	RSA 1024 bits

Checks

✓ Keys found: mail, selector1, s1, s2 #7

DKIM keys found for this domain with selectors: mail, selector1, s1, s2
!

1024-bit DKIM key

1024-bit RSA keys are the minimum and are considered weak today: mail (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
0	caritas-de.mail.protection.outlook.com	A 52.101.168.0 A 52.101.170.2 A 52.101.170.0 A 52.101.170.1 AAAA 2a01:111:f403:ca27:: AAAA 2a01:111:f403:ca2d:: AAAA 2a01:111:f403:ca2d::1 AAAA 2a01:111:f403:ca2d::2	mail-beup281cu00100.inbound.protection.outlook.com ✓ mail-fr6p281cu00202.inbound.protection.outlook.com ✓ mail-fr5p281cu00500.inbound.protection.outlook.com ✓ mail-fr4p281cu03101.inbound.protection.outlook.com ✓ mail-beup281cu00100.inbound.protection.outlook.com ✓ mail-fr5p281cu00500.inbound.protection.outlook.com ✓ mail-fr4p281cu03101.inbound.protection.outlook.com ✓ mail-fr6p281cu00202.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
caritas-de.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