DOMAINS CHANGES SERVICES CERTS API

fastmail.com

Observed 2026-06-13T08:05:34.514Z (4h ago). Every field below was attested with an Ed25519 signature at scan time.

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Ed25519 Receipt

Receipt ID
665ae177-2f59-46a8-a0f6-e27b27ee2325
Output Hash
ef929b3b5a58550b74fcb6387da991b079d796ae9c31d69b0da73d98970fea27
Signature
ed25519:635d87da051c64fc86aee6e1f0448ff542d08459db7e550c7f2a21203eae1309d56e2937c8ebe7fb75ff2768c2ec36056598cc4d7d3f619fc11c1da21df13c06
Public Key
ed25519:d3f6015a95abdad7e8166ad80938a5885500170bb75f8cdb425b8fd2772bec29
Parent
(genesis)
Plane
fast
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DNS Records

A 1

  • 103.168.172.65

MX 2

  • {"priority":10,"exchange":"in1-smtp.messagingengine.com"}
  • {"priority":20,"exchange":"in2-smtp.messagingengine.com"}

TXT 4

  • v=spf1 include:spf.messagingengine.com ~all
  • v=DMARC1; p=none; rua=mailto:e3936a44@inbox.ondmarc.com
  • v=spf1 include:spf.messagingengine.com ~all
  • v=STSv1; id=20251216T132000

NS 2

  • fmns1.messagingengine.com
  • fmns2.messagingengine.com

SOA 1

  • {"mname":"fmns1.messagingengine.com","rname":"postmaster.messagingengine.com","serial":2026061201,"refresh":86118,"retry":600,"expire":1209600,"minimum":3600}

SRV 3

  • {"priority":0,"weight":1,"port":443,"target":"autodiscover.fastmail.com"}
  • {"priority":0,"weight":1,"port":993,"target":"imap.fastmail.com"}
  • {"priority":0,"weight":0,"port":0,"target":""}

CAA 8

  • {"flag":0,"tag":"issue","value":"\"comodoca.com\""}
  • {"flag":0,"tag":"issue","value":"\"digicert.com; cansignhttpexchanges=yes\""}
  • {"flag":0,"tag":"issue","value":"\"letsencrypt.org\""}
  • {"flag":0,"tag":"issue","value":"\"pki.goog; cansignhttpexchanges=yes\""}
  • {"flag":0,"tag":"issuewild","value":"\"comodoca.com\""}
  • {"flag":0,"tag":"issuewild","value":"\"digicert.com; cansignhttpexchanges=yes\""}
  • {"flag":0,"tag":"issuewild","value":"\"letsencrypt.org\""}
  • {"flag":0,"tag":"issuewild","value":"\"pki.goog; cansignhttpexchanges=yes\""}

TLS Certificates (3)

Common NameIssuerExpires
*.fastmail.com C=US, O=Let's Encrypt, CN=YR2 Sun, 30 Aug 2026 00:19:47 +0000
YR2 C=US, O=ISRG, CN=Root YR Sat, 02 Sep 2028 23:59:59 +0000
Root YR C=US, O=Internet Security Research Group, CN=ISRG Root X1 Thu, 02 Sep 2032 23:59:59 +0000

Subdomains (0)

None observed.