halcyonsw.com

Valid Email Server
Domain Lookup › halcyonsw.com
Live data — DNS records and disposable check were just fetched and saved.

Domain Overview

DNS: ⚡ live Checker: ⚡ live
halcyonsw.com
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-05-20 21:30:48 UTC · ↺ Refresh

MX Hostnames

  • us-smtp-inbound-2.mimecast.com
  • us-smtp-inbound-1.mimecast.com

MX Priorities

No priority data.

A / AAAA Records

  • 15.197.225.128
  • 3.33.251.168

Mail Server IPs

No IPs resolved.

SOA Record

No SOA record found.

Nameservers (NS)

ns18.domaincontrol.com
ns17.domaincontrol.com

SPF Record

✓ Soft Fail (~all)
v=spf1 include:mail.zendesk.com include:spf.protection.outlook.com include:us._netblocks.mimecast.com include:7437718.spf01.hubspotemail.net include:em8808.halcyonsw.com ~all
📊 DNS lookups: 5/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]

DKIM Selectors

✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: selector1

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

6 records
  • MS=ms41066629
  • 0ed1fe018aeea1156c1ce0437d9158e3d1de741ebc
  • SPFv=spf1 include:mail.zendesk.com include:spf.protection.outlook.com include:us._netblocks.mimecast.com include:7437718.spf01.hubspotemail.net include:em8808.halcyonsw.com ~all
  • NETORGFT5446205.onmicrosoft.com
  • apple-domain-verification=7p4bJE4WrGsjMXfh
  • DKIMv=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCJ/DbhxXVjxbU1gfkcL28jFP5lMwl6UTBE/fcnkIu23N+p7YBkhy6eex5v70fEVsLX2WCiVtN2PgPwRmJXcsSWGmiEi9l6f/L8hYT0OX0OUxX9xavpMPeSEX/85QJW9/zNdD6qyF+zuL+Enx/jnW/U2GnjiPhKA5EoDrfoPmm+zQIDAQAB
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