DNS Report: fastmail.com

Generated: 2026-08-11T00:14:43-05:00

82/100

Diagnostics

StatusCheckPointsDetails
OKIPv4 (A)30/301 IPv4 address(es) detected.
ERRORIPv6 (AAAA)0/100 IPv6 address(es) detected.
OKName server redundancy20/202 NS record(s); 2 or more required.
OKSOA record10/10Authoritative zone record.
ERRORDNSSEC chain0/15Both DS and DNSKEY are required.
OKCAA policy5/5Certificate authority restriction.
OKDNS propagation10/10Agreement between public resolvers.
OKMX records20/202 MX record(s).
OKSPF25/25SPF policy published.
OKDMARC25/25DMARC policy published.
ERRORDKIM0/20No tested DKIM selector responded.
OKMTA-STS5/5Mail transport policy.
OKTLS-RPT5/5TLS reporting policy.
OKValid TLS certificate55/5562 day(s) remaining.
OKCertificate lifetime10/10Full points require at least 30 days remaining.
WARNINGHTTP security headers23/356 of 9 evaluated headers detected.
OKPTR reverse DNS30/30PTR: redir.messagingengine.com
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
103.168.172.65
AAAA
CNAME
MX
20 in2-smtp.messagingengine.com.
10 in1-smtp.messagingengine.com.
TXT
"v=spf1 include:spf.messagingengine.com ~all"
NS
fmns1.messagingengine.com.
fmns2.messagingengine.com.
SOA
fmns1.messagingengine.com. postmaster.messagingengine.com. 2026081000 86118 600 1209600 3600
CAA
0 issuewild "letsencrypt.org"
0 issue "letsencrypt.org"
0 issuewild "pki.goog; cansignhttpexchanges=yes"
0 issue "comodoca.com"
0 issue "pki.goog; cansignhttpexchanges=yes"
0 issuewild "comodoca.com"
0 issue "digicert.com; cansignhttpexchanges=yes"
0 issuewild "digicert.com; cansignhttpexchanges=yes"
DS
DNSKEY
RRSIG
NSEC
NSEC3
SRV
NAPTR
TLSA
SSHFP