thermofisher.com

Checked 22 October 2026, 11:03 UTC · via 8.8.8.8
!Passed with warnings
24 passed 5 warnings 0 failed 3 info

SPF

pass

SPF record published

Found

Record
v=spf1 include:%{ir}.%{v}.%{d}.spf.has.pphosted.com include:_spf-a.thermofisher.com include:mail.zendesk.com include:spf.protection.outlook.com include:_spf.qualtrics.com a:c.spf.service-now.com a:b.spf.service-now.com ip4:148.163.148.140 ip4:208.86.201.75 ip4:64.58.143.30 ip4:64.58.43.31 ip4:64.58.43.32 ip4:64.58.43.33 ip4:64.58.43.34 ip4:64.58.43.35 ip4:64.58.43.36 ip4:64.58.43.37 ip4:64.58.43.38 ip4:64.58.43.39 ~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

warn

p=quarantine (_dmarc.thermofisher.com)

Found

Record
v=DMARC1; p=quarantine; fo=1; rua=mailto:dmarc_rua@emaildefense.proofpoint.com; ruf=mailto:dmarc_ruf@emaildefense.proofpoint.com
Found at
_dmarc.thermofisher.com
External report address
mailto:dmarc_rua@emaildefense.proofpoint.com (authorized)
External report address
mailto:dmarc_ruf@emaildefense.proofpoint.com (authorized)
TagValueMeaning
vDMARC1Version
pquarantinePolicy
ruamailto:dmarc_rua@emaildefense.proofpoint.comAggregate report addresses
rufmailto:dmarc_ruf@emaildefense.proofpoint.comFailure report addresses
fo1Failure reporting options

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_rua@emaildefense.proofpoint.com
  • ✓ Subdomain policy: quarantine #20
    Subdomains are covered by policy 'quarantine'.
  • ✓ External report addresses authorized #29
    Report addresses in other domains have published their authorization.

DKIM

pass

Selectors: s1, s2

Found

Selectors
s1, s2
_domainkey
NOERROR
SelectorKeyFlags
s1RSA 2048 bits
s2RSA 2048 bits

Checks

  • ✓ Keys found: s1, s2 #7
    DKIM keys found for this domain with selectors: s1, s2
  • ✓ Strong keys #23
    DKIM keys are strong enough: s1: RSA 2048 bits; s2: 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

6 mail servers

Found

PriorityHostRecordsReverse DNS
10mxa-002a2102.gslb.pphosted.comA 148.163.148.140mx0a-002a2102.pphosted.com ✓
10mxb-002a2102.gslb.pphosted.comA 148.163.148.140mx0a-002a2102.pphosted.com ✓
20mx0a-002a2102.pphosted.comA 148.163.148.140mx0a-002a2102.pphosted.com ✓
20mx0b-002a2102.pphosted.comA 208.86.201.75mx0b-002a2102.pphosted.com ✓
50ppmxa.thermofisher.comA 208.86.201.75mx0b-002a2102.pphosted.com ✓
50ppmxb.thermofisher.comA 148.163.148.140mx0a-002a2102.pphosted.com ✓

Checks

  • ✓ 6 MX records #9
    Found 6 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: mxa-002a2102.gslb.pphosted.com, mxb-002a2102.gslb.pphosted.com, mx0a-002a2102.pphosted.com, mx0b-002a2102.pphosted.com, ppmxa.thermofisher.com, ppmxb.thermofisher.com
    #11
  • ✓ Redundant MX hosts #12
    Found 6 MX records, which provides redundancy for email delivery.
  • !
    More than 5 MX records
    Found 6 MX records, which is more than the recommended maximum of 5. Too many MX records may indicate a misconfiguration.
    #13
  • ✓ 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 6 MX addresss have a PTR record that resolves back to them.

TLS

warn

no MTA-STS · no TLS-RPT · DANE on 0 of 6 MX hosts

Found

DANE (TLSA records)

MX hostTLSADNSSEC
mxa-002a2102.gslb.pphosted.comnone-
mxb-002a2102.gslb.pphosted.comnone-
mx0a-002a2102.pphosted.comnone-
mx0b-002a2102.pphosted.comnone-
ppmxa.thermofisher.comnone-
ppmxb.thermofisher.comnone-

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