regioit.de

Checked 22 October 2026, 00:00 UTC · via 8.8.8.8
✗Problems found
23 passed 3 warnings 1 failed 3 info

SPF

warn

SPF record published

Found

Record
v=spf1 mx a:mx01.kdvz-frechen.de a:page4you.regioit.de include:spf.mailjet.com include:spf.protection.outlook.com include:spf.regioit.de include:spf.crsend.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 (neutral)
    SPF record uses ?all (neutral), which gives no protection against unauthorized senders. Use -all or ~all instead.
    #3
  • ✓ 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

fail

p=none (_dmarc.regioit.de)

Found

Record
v=DMARC1; p=none; rua=mailto:sysDMARCReader@regioit.de,mailto:DMARC@regioit.de; ruf=mailto:sysDMARCReader@regioit.de,mailto:DMARC@regioit.de; fo=0; adkim=r; aspf=r; pct=100; rf=afrf; ri=86400; sp=none
Found at
_dmarc.regioit.de
TagValueMeaning
vDMARC1Version
pnonePolicy
spnoneSubdomain policy
pct100Percentage of mail the policy applies to
ruamailto:sysDMARCReader@regioit.de,mailto:DMARC@regioit.deAggregate report addresses
rufmailto:sysDMARCReader@regioit.de,mailto:DMARC@regioit.deFailure report addresses
adkimrDKIM alignment (r = relaxed, s = strict)
aspfrSPF alignment (r = relaxed, s = strict)
fo0Failure reporting options
rfafrfFailure report format
ri86400Report interval (seconds)

Checks

  • ✗
    Policy: none (monitoring only)
    DMARC policy is set to 'none', which only monitors but doesn't protect against spoofing. Consider upgrading to 'quarantine' or ideally 'reject'.
    #4
  • ✓ Record published #5
    DMARC record exists for this domain.
  • ✓ Valid syntax #17
    DMARC record syntax is valid.
  • ✓ Aggregate reports enabled #19
    Aggregate reports are sent to: mailto:sysDMARCReader@regioit.de, mailto:DMARC@regioit.de
  • ✓ Report addresses in own domain #29
    All report addresses are in your own organizational domain.

DKIM

pass

Selectors: mail

Found

Selectors
mail
_domainkey
NOERROR
SelectorKeyFlags
mailRSA 2048 bits

Checks

  • ✓ Keys found: mail #7
    DKIM keys found for this domain with selectors: mail
  • ✓ Strong keys #23
    DKIM keys are strong enough: mail: 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

pass

4 mail servers

Found

PriorityHostRecordsReverse DNS
10mail10.regioit-aachen.deA 91.102.136.170 AAAA 2a02:16f0::1:3mail10.regioit-aachen.de ✓ mail10.regioit-aachen.de ✓
10mail11.regioit-aachen.deA 91.102.136.172 AAAA 2a02:16f0::1:4mail11.regioit-aachen.de ✓ mail11.regioit-aachen.de ✓
10mail12.regioit-aachen.deA 91.102.136.186 AAAA 2a02:16f0::1:5mail12.regioit-aachen.de ✓ mail12.regioit-aachen.de ✓
50mail50.regioit-aachen.deA 91.102.136.64 AAAA 2a02:16f0::2:2mail50.regioit-aachen.de ✓ mail50.regioit-aachen.de ✓

Checks

  • ✓ 4 MX records #9
    Found 4 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.
  • ✓ Redundant MX hosts #12
    Found 4 MX records, which provides redundancy for email delivery.
  • ✓ At most 5 MX records #13
    Found 4 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 4 MX hosts

Found

DANE (TLSA records)

MX hostTLSADNSSEC
mail10.regioit-aachen.denone-
mail11.regioit-aachen.denone-
mail12.regioit-aachen.denone-
mail50.regioit-aachen.denone-

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