Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
jfk.org
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-18 20:37:24 UTC · ↺ Refresh
MX Hostnames
- us-smtp-inbound-2.mimecast.com
- us-smtp-inbound-1.mimecast.com
MX Priorities
- us-smtp-inbound-1.mimecast.com: 10
- us-smtp-inbound-2.mimecast.com: 10
A / AAAA Records
- 208.77.216.134 ↩ webserver.jfk.org
Mail Server IPs
- 170.10.132.221 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.132.242 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.128.221 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.132.141 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.128.141 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.128.242 ↩ us-smtp-inbound-1.mimecast.com
SOA Record
Raw SOA
ns1.tierra.net hostmaster.tierra.net 2026031102 3600 600 1209600 86400
Primary NS (mname)
ns1.tierra.net
Admin Email (rname)
hostmaster@tierra.net
Serial
2026031102
Refresh
3600s
Retry
600s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns1.tierra.net
ns2.tierra.net
SPF Record
✓ Soft Fail (~all)
v=spf1 include:us._netblocks.mimecast.com include:outboundmail.blackbaud.net ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]
~ 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
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
5 records- M4E7E2WN9TEWLV1K6GOHY02UGA755SIW4PBRLWEXV
- Foxit-domain-verification=e43c9eccea76b3943f82b90bc05d22a5
- MS=ms13752308
- 59ohbllucdrel5uoqft8v1sp7s
- SPFv=spf1 include:us._netblocks.mimecast.com include:outboundmail.blackbaud.net ~all
Full email verification for jfk.org
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