Mail domain report: apobank.de

SPF

pass

SPF record published

Found

Record: v=spf1 ip4:37.202.1.53 ip4:37.202.1.54 ip4:188.94.250.251 ip4:188.94.250.252 ip4:185.221.105.201 ip4:194.149.246.0/23 ip4:195.35.89.0/25 ip4:217.113.37.211 ip4:213.131.233.117 ip4:168.87.2.128/26 ip4:213.163.237.22 ip4:213.163.237.23 ip4:62.138.245.88 ip4:78.46.127.90 ip4:213.163.237.86 ip4:213.163.237.92 ip4:213.163.237.93 ip4:213.163.237.36 ip6:2a01:4f8:d0a:505e::2 ip4:78.47.139.137 ip6:2a01:4f8:d0a:41a1::2 ip4:88.99.138.38 ip4:192.103.120.0/22 ip4:159.135.224.0/20 ip4:69.72.32.0/20 ip4:204.220.90.0/23 ip4:204.220.92.0/22 ip4:161.38.192.0/20 ip4:143.55.224.0/21 ip4:143.55.232.0/22 ip4:159.112.240.0/20 ip4:198.244.48.0/20 ip4:204.220.168.0/21 ip4:204.220.176.0/20 ip4:141.193.32.0/29 ip4:159.135.140.80/29 ip4:159.135.132.128/25 ip4:161.38.204.0/22 ip4:87.253.232.0/21 ip4:185.189.236.0/22 ip4:185.211.120.0/22 ip4:185.250.236.0/22 ip4:143.55.236.0/22 ip4:198.244.60.0/22 ip4:204.220.160.0/20 ip4:85.222.150.221 ip4:89.45.227.221 ip4:89.45.227.195 ip4:86.107.243.139 ip4:143.55.236.39 ip4:141.193.32.19 ip4:18.195.58.148 ip4:212.211.203.248/32 ip4:212.211.203.251/32 ip4:212.211.203.252/32 ip4:162.55.240.73/32 ip4:145.253.80.4/32 ip4:82.150.225.79/32 a:mail.incognito.ms include:network.mynewsdesk.com include:agenturserver.de include:amazonses.com include:_spf.tivian.com include:_spf.psm.knowbe4.com include:_spf.qp-mail.eu include:spf.protection.outlook.com include:spf-de.emailsignatures365.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.
✓ No overly broad IP ranges #27

All ip4/ip6 ranges are narrow enough.

DMARC

pass

p=reject (_dmarc.apobank.de)

Found

Record: v=DMARC1; p=reject; pct=100; fo=1; ri=3600; rua=mailto:2191086@dmarc.mailgun.org,mailto:ce13d8c0@inbox.ondmarc.com, mailto:dmarc@apobank.de; ruf=mailto:2191086@dmarc.mailgun.org,mailto:ce13d8c0@inbox.ondmarc.com;
Found at: _dmarc.apobank.de
External report address: mailto:2191086@dmarc.mailgun.org (authorized)
External report address: mailto:ce13d8c0@inbox.ondmarc.com (authorized)

Tag	Value	Meaning
v	DMARC1	Version
p	reject	Policy
pct	100	Percentage of mail the policy applies to
rua	mailto:2191086@dmarc.mailgun.org,mailto:ce13d8c0@inbox.ondmarc.com, mailto:dmarc@apobank.de	Aggregate report addresses
ruf	mailto:2191086@dmarc.mailgun.org,mailto:ce13d8c0@inbox.ondmarc.com	Failure report addresses
fo	1	Failure reporting options
ri	3600	Report interval (seconds)

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:2191086@dmarc.mailgun.org, mailto:ce13d8c0@inbox.ondmarc.com, mailto:dmarc@apobank.de
✓ 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

pass

Selectors: selector1, selector2

Found

Selectors: selector1, selector2
_domainkey: NOERROR

Selector	Key	Flags
selector1	RSA 2048 bits
selector2	RSA 2048 bits

Checks

✓ Keys found: selector1, selector2 #7

DKIM keys found for this domain with selectors: selector1, selector2
✓ Strong keys #23

DKIM keys are strong enough: selector1: RSA 2048 bits; selector2: RSA 2048 bits.
✓ 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	apobank-de.mail.protection.outlook.com	A 52.101.170.0 A 52.101.170.1 A 52.101.170.2 A 52.101.168.0 AAAA 2a01:111:f403:ca2d:: AAAA 2a01:111:f403:ca27:: AAAA 2a01:111:f403:ca2d::2 AAAA 2a01:111:f403:ca2d::1	mail-fr5p281cu00500.inbound.protection.outlook.com ✓ mail-fr4p281cu03101.inbound.protection.outlook.com ✓ mail-fr6p281cu00202.inbound.protection.outlook.com ✓ mail-beup281cu00100.inbound.protection.outlook.com ✓ mail-fr5p281cu00500.inbound.protection.outlook.com ✓ mail-beup281cu00100.inbound.protection.outlook.com ✓ mail-fr6p281cu00202.inbound.protection.outlook.com ✓ mail-fr4p281cu03101.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
apobank-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