DNS Report: postmarkapp.com

Generated: 2026-08-11T09:39:34-05:00

76/100

Diagnostics

StatusCheckPointsDetails
OKIPv4 (A)30/301 IPv4 address(es) detected.
ERRORIPv6 (AAAA)0/100 IPv6 address(es) detected.
OKName server redundancy20/204 NS record(s); 2 or more required.
OKSOA record10/10Authoritative zone record.
ERRORDNSSEC chain0/15Both DS and DNSKEY are required.
ERRORCAA policy0/5Certificate authority restriction.
OKDNS propagation10/10Agreement between public resolvers.
OKMX records20/205 MX record(s).
OKSPF25/25SPF policy published.
OKDMARC25/25DMARC policy published.
OKDKIM20/20A DKIM selector was verified.
ERRORMTA-STS0/5Mail transport policy.
ERRORTLS-RPT0/5TLS reporting policy.
OKValid TLS certificate55/5542 day(s) remaining.
OKCertificate lifetime10/10Full points require at least 30 days remaining.
WARNINGHTTP security headers8/352 of 9 evaluated headers detected.
ERRORPTR reverse DNS0/30PTR not detected.
WARNINGIPv4 diversity20/35Two or more IPv4 addresses receive full points.
ERRORIPv6 connectivity0/35AAAA availability.
OKDNS resolution40/40At least one address family must resolve.
OKHTTP response40/40HTTP/2 200
OKHTTPS final URL20/20Final URL uses HTTPS.

DNS Records

TipoValues
A
94.247.142.1
AAAA
CNAME
MX
30 aspmx2.googlemail.com.
20 alt2.aspmx.l.google.com.
10 aspmx.l.google.com.
20 alt1.aspmx.l.google.com.
30 aspmx3.googlemail.com.
TXT
"v=spf1 a mx include:spf.mtasv.net include:_spf.google.com include:cmail1.com include:mail.zendesk.com include:helpscoutemail.com ~all"
"google-site-verification=CFwYqNoJsUkztxVzMjK8u1m0_BaklRvOZb5aecNTk8o "
"abuseipdb-verification=QzehCZYK"
"01a65dddcd764010b6df567c88b8fb7d"
"digicert: 00577009 nagele@wildbit.com"
"google-site-verification=Bd-0GuslXF2wO_SnN_1pHncqvPZAuCOZxlGaly-V8zI"
"google-site-verification=aRqd5oLuMuPX2-qGutbokgWlmw76Gr68-v_Ryr0Pha8"
NS
ns-1262.awsdns-29.org.
ns-1657.awsdns-15.co.uk.
ns-229.awsdns-28.com.
ns-721.awsdns-26.net.
SOA
ns-1262.awsdns-29.org. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 86400
CAA
DS
DNSKEY
RRSIG
NSEC
NSEC3
SRV
NAPTR
TLSA
SSHFP