Mail domain report: unive.nl

SPF

pass

SPF record published

Found

Record: v=spf1 ip4:80.65.96.45 ip4:80.65.96.5 ip4:62.165.65.0/24 ip6:2001:1690:65::/64 ip4:195.42.134.20/31 ip4:37.97.216.112 ip4:212.83.209.204 ip4:3.126.25.115 ip4:94.143.213.32/27 include:spf.afas.online include:_spf.unive.nl include:spf.protection.outlook.com include:spf.flowmailer.net include:spf.topdesk.net include:spf.mandrillapp.com -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

pass

p=reject (_dmarc.unive.nl)

Found

Record: v=DMARC1;p=reject;pct=100;rua=mailto:dmarc-rua@unive.nl;ruf=mailto:dmarc-ruf@unive.nl;fo=1
Found at: _dmarc.unive.nl

Tag	Value	Meaning
v	DMARC1	Version
p	reject	Policy
pct	100	Percentage of mail the policy applies to
rua	mailto:dmarc-rua@unive.nl	Aggregate report addresses
ruf	mailto:dmarc-ruf@unive.nl	Failure report addresses
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-rua@unive.nl
✓ 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

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

info

DNS query for unive.nl failed: read udp 46.225.38.91:35977->8.8.8.8:53: i/o timeout

Checks

i

Could not be checked

The DNSSEC lookup failed, so this could not be checked: DNS query for unive.nl failed: read udp 46.225.38.91:35977->8.8.8.8:53: i/o timeout

#8

MX

warn

1 mail server

Found

Priority	Host	Records	Reverse DNS
10	unive-nl.mail.protection.outlook.com	A 52.101.68.21 A 52.101.68.27 A 52.101.91.21 A 52.101.91.162 AAAA 2a01:111:f403:ca21::10 AAAA 2a01:111:f403:c967::8 AAAA 2a01:111:f403:c967::c AAAA 2a01:111:f403:ca04::c	mail-db4pr02cu00205.inbound.protection.outlook.com ✓ mail-db7pr03cu00503.inbound.protection.outlook.com ✓ mail-matpr05cu00105.inbound.protection.outlook.com ✓ mail-matpr04cu00302.inbound.protection.outlook.com ✓ mail-matpr05cu00100.inbound.protection.outlook.com ✓ mail-cpjpr04cu00100.inbound.protection.outlook.com ✓ mail-cpjpr05cu00204.inbound.protection.outlook.com ✓ mail-db9pr02cu00204.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
unive-nl.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

pass

https://vmc.digicert.com/31dd6175-6146-4b7f-a9c6-4aed5c95ef14.svg

Found

Record: v=BIMI1; l=https://vmc.digicert.com/31dd6175-6146-4b7f-a9c6-4aed5c95ef14.svg; a=https://vmc.digicert.com/31dd6175-6146-4b7f-a9c6-4aed5c95ef14.pem
Found at: default._bimi.unive.nl
Logo: https://vmc.digicert.com/31dd6175-6146-4b7f-a9c6-4aed5c95ef14.svg
Certificate: https://vmc.digicert.com/31dd6175-6146-4b7f-a9c6-4aed5c95ef14.pem

Checks

✓ Logo and certificate published #38

BIMI logo: https://vmc.digicert.com/31dd6175-6146-4b7f-a9c6-4aed5c95ef14.svg; certificate: https://vmc.digicert.com/31dd6175-6146-4b7f-a9c6-4aed5c95ef14.pem
✓ DMARC meets BIMI requirements #39

DMARC is enforced on all mail, as BIMI requires.