doctolib.de

Checked 21 October 2026, 22:14 UTC · via 8.8.8.8
!Passed with warnings
32 passed 1 warning 0 failed 1 info

SPF

pass

SPF record published

Found

Record
v=spf1 include:_spf.google.com include:_spf.salesforce.com include:spf.sendinblue.com include:spf.flowmailer.net a:zgateway.zuora.com -all
DNS lookups
6 of 10
Void lookups
0 of 2

Checks

  • ✓ No deprecated ptr mechanism #1
    No ptr mechanism found in SPF record.
  • ✓ 6 of 10 DNS lookups #2
    SPF record needs 6 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.doctolib.de)

Found

Record
v=DMARC1; p=reject; rua=mailto:94d1389a2ee742ba89ab43aba297e0a7@dmarc-reports.cloudflare.net,mailto:4q5jhtt3@ag.eu.dmarcian.com; ruf=mailto:4q5jhtt3@fr.eu.dmarcian.com; sp=reject; np=reject; psd=n; t=n; fo=0
Found at
_dmarc.doctolib.de
External report address
mailto:94d1389a2ee742ba89ab43aba297e0a7@dmarc-reports.cloudflare.net (authorized)
External report address
mailto:4q5jhtt3@ag.eu.dmarcian.com (authorized)
External report address
mailto:4q5jhtt3@fr.eu.dmarcian.com (authorized)
TagValueMeaning
vDMARC1Version
prejectPolicy
sprejectSubdomain policy
ruamailto:94d1389a2ee742ba89ab43aba297e0a7@dmarc-reports.cloudflare.net,mailto:4q5jhtt3@ag.eu.dmarcian.comAggregate report addresses
rufmailto:4q5jhtt3@fr.eu.dmarcian.comFailure report addresses
fo0Failure reporting options
npreject
psdn
tn

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:94d1389a2ee742ba89ab43aba297e0a7@dmarc-reports.cloudflare.net, mailto:4q5jhtt3@ag.eu.dmarcian.com
  • ✓ 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

warn

No keys found under the checked selectors

Found

Selectors
None found
_domainkey
NOERROR

Checks

  • !
    No key under common selectors
    The _domainkey name exists but no DKIM key was found under the common selectors. Selectors are provider-specific; check yours with -selector.
    #7

DNSSEC

pass

Signed, DS published at parent

Found

DNSKEY records
Yes (2)
DS at parent
Yes
Algorithms
ECDSAP256SHA256 (13)
Key tags
2371, 34505
Signatures valid until
13 December 2026, 00:38 UTC

Checks

  • ✓ Signed, DS published at parent #8
    DNSSEC is enabled for this domain (DNSKEY and DS present), providing additional security for DNS lookups.
  • ✓ Signatures valid until 2026-12-13 #21
    DNSKEY signatures are valid until 2026-12-13T00:38:48Z.

MX

pass

5 mail servers

Found

PriorityHostRecordsReverse DNS
1aspmx.l.google.comA 142.251.127.27 AAAA 2a00:1450:4001:c21::1alcfrai-in-f27.1e100.net ✓ lcfrai-in-f26.1e100.net ✓
5alt1.aspmx.l.google.comA 142.250.147.26 AAAA 2a00:1450:4025:c01::1ard-in-f26.1e100.net ✓ rd-in-f26.1e100.net ✓
5alt2.aspmx.l.google.comA 172.253.152.26 AAAA 2a00:1450:4010:c22::1byulpptr-in-f26.1e100.net ✓ yulpptr-in-f27.1e100.net ✓
10alt3.aspmx.l.google.comA 192.179.20.26 AAAA 2404:6800:4000:1027::1ancboms-in-f26.1e100.net ✓ ncboms-in-f26.1e100.net ✓
10alt4.aspmx.l.google.comA 192.178.158.27 AAAA 2404:6800:4013:813::1blcdels-in-f27.1e100.net ✓ lcdels-in-f27.1e100.net ✓

Checks

  • ✓ 5 MX records #9
    Found 5 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 5 MX records, which provides redundancy for email delivery.
  • ✓ At most 5 MX records #13
    Found 5 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 10 MX addresss have a PTR record that resolves back to them.

TLS

info

MTA-STS enforce · TLS-RPT · DANE on 0 of 5 MX hosts

Found

MTA-STS record
v=STSv1;id=1574344266121;
Policy URL
https://mta-sts.doctolib.de/.well-known/mta-sts.txt
Mode
enforce
Allowed MX
alt2.aspmx.l.google.com, aspmx.l.google.com, alt3.aspmx.l.google.com, alt4.aspmx.l.google.com, alt1.aspmx.l.google.com
Max age
604800 seconds
TLS-RPT record
v=TLSRPTv1;rua=mailto:4q5jhtt3@tls.eu.dmarcian.com;

DANE (TLSA records)

MX hostTLSADNSSEC
aspmx.l.google.comnone-
alt1.aspmx.l.google.comnone-
alt2.aspmx.l.google.comnone-
alt3.aspmx.l.google.comnone-
alt4.aspmx.l.google.comnone-

Checks

  • ✓ Record published #32
    MTA-STS record found with id 1574344266121.
  • ✓ Policy enforced #33
    The MTA-STS policy is enforced and cached for 168h0m0s.
  • ✓ All MX hosts covered #34
    Every MX host matches an mx: line of the MTA-STS policy.
  • ✓ Reports enabled #35
    TLS reports are sent to: mailto:4q5jhtt3@tls.eu.dmarcian.com
  • 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://assets.doctolib.fr/img/bimi/doctolib.svg

Found

Record
v=BIMI1; l=https://assets.doctolib.fr/img/bimi/doctolib.svg; a=https://assets.doctolib.fr/img/bimi/doctolib.pem;
Found at
default._bimi.doctolib.de
Logo
https://assets.doctolib.fr/img/bimi/doctolib.svg
Certificate
https://assets.doctolib.fr/img/bimi/doctolib.pem

Checks

  • ✓ Logo and certificate published #38
    BIMI logo: https://assets.doctolib.fr/img/bimi/doctolib.svg; certificate: https://assets.doctolib.fr/img/bimi/doctolib.pem
  • ✓ DMARC meets BIMI requirements #39
    DMARC is enforced on all mail, as BIMI requires.