mdaemon.com

Checked 22 October 2026, 09:44 UTC · via 8.8.8.8
!Passed with warnings
28 passed 6 warnings 0 failed 1 info

SPF

pass

SPF record published

Found

Record
v=spf1 mx a:sg.mdaemon.com a:r2d2.mdaemon.com a:mail.mdaemon.com a:mail1.mdaemon.com a:smtp1.mdaemon.com ip6:2607:fdb8:1:c10::132 ip6:2607:fdb8:1:c10::68 include:6572702.spf06.hubspotemail.net include:xenforum.net -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.mdaemon.com)

Found

Record
v=DMARC1; p=quarantine; rua=mailto:dmarc-reports@mdaemon.com
Found at
_dmarc.mdaemon.com
TagValueMeaning
vDMARC1Version
pquarantinePolicy
ruamailto:dmarc-reports@mdaemon.comAggregate 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-reports@mdaemon.com
  • ✓ Subdomain policy: quarantine #20
    Subdomains are covered by policy 'quarantine'.
  • ✓ 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

warn

2 mail servers

Found

PriorityHostRecordsReverse DNS
10sg.mdaemon.comA 65.99.242.70sg.mdaemon.com ✓
20smtp1.mdaemon.comA 65.99.242.133smtp1.mdaemon.com ✓

Checks

  • ✓ 2 MX records #9
    Found 2 MX records for this domain.
  • ✓ All hosts resolve #10
    All MX records resolve to valid IP addresses.
  • !
    Hosts without IPv6
    The following MX hosts could not be resolved to IPv6 addresses: sg.mdaemon.com, smtp1.mdaemon.com
    #11
  • ✓ Redundant MX hosts #12
    Found 2 MX records, which provides redundancy for email delivery.
  • ✓ At most 5 MX records #13
    Found 2 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 2 MX addresss have a PTR record that resolves back to them.

TLS

warn

MTA-STS testing · TLS-RPT · DANE on 0 of 2 MX hosts

Found

MTA-STS record
v=STSv1; id=20250415T070101;
Policy URL
https://mta-sts.mdaemon.com/.well-known/mta-sts.txt
Mode
testing
Allowed MX
mail.mdaemon.com, sg.mdaemon.com
Max age
604800 seconds
TLS-RPT record
v=TLSRPTv1; rua=mailto:mtasts-reports@mdaemon.com

DANE (TLSA records)

MX hostTLSADNSSEC
sg.mdaemon.comnone-
smtp1.mdaemon.comnone-

Checks

  • ✓ Record published #32
    MTA-STS record found with id 20250415T070101.
  • !
    Policy in testing mode
    With mode: testing, senders only report TLS problems (via TLS-RPT) and still deliver without TLS. Switch to mode: enforce once reports are clean.
    #33
  • !
    MX hosts missing from policy
    These MX hosts are not listed in the MTA-STS policy (mx: mail.mdaemon.com, sg.mdaemon.com): smtp1.mdaemon.com. This will break delivery once the policy is enforced.
    #34
  • ✓ Reports enabled #35
    TLS reports are sent to: mailto:mtasts-reports@mdaemon.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

warn

https://files.mdaemon.com/mdaemon/BIMI/_MDaemon-Technologies_BIMI_logo_SVG.svg

Found

Record
v=BIMI1; l=https://files.mdaemon.com/mdaemon/BIMI/_MDaemon-Technologies_BIMI_logo_SVG.svg;
Found at
default._bimi.mdaemon.com
Logo
https://files.mdaemon.com/mdaemon/BIMI/_MDaemon-Technologies_BIMI_logo_SVG.svg

Checks

  • !
    No certificate (a=)
    The logo is published without a Verified Mark Certificate. Gmail and Apple Mail only show BIMI logos with a VMC or CMC; Yahoo shows it without one.
    #38
  • ✓ DMARC meets BIMI requirements #39
    DMARC is enforced on all mail, as BIMI requires.