Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
btopenworld.com
Yes
✓ Yes
Unknown
No
Yes
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-23 02:33:41 UTC · ↺ Refresh
MX Hostnames
- mx.bt.prod.cloud.openwave.ai
MX Priorities
- mx.bt.prod.cloud.openwave.ai: 1
A / AAAA Records
No A/AAAA records found.
Mail Server IPs
- 65.20.50.207 (no PTR)
SOA Record
Raw SOA
eddns0.bt.com zzdnsr.bt.com 63 10800 3600 604800 86400
Primary NS (mname)
eddns0.bt.com
Admin Email (rname)
zzdnsr@bt.com
Serial
63
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
86400s
Nameservers (NS)
dydns1.bt.com
eddns0.bt.com
dydns0.bt.com
eddns1.bt.com
SPF Record
✓ Soft Fail (~all)
v=spf1 include:_spf.btinternet.com include:bt.com ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; sp=reject; pct=100; fo=1; rua=mailto:[email protected];ruf=mailto:[email protected];
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: reject
DKIM Selectors
✗ None detectedNo DKIM records found for common selectors — your provider may use a custom selector name.
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
5 records- SPFv=spf1 include:_spf.btinternet.com include:bt.com ~all
- _pto6wl3sbv8v921nx6490pcp7c9rjxx
- 6bgvgds73f6g3tvj48lclzs28frph27p
- qhdnx37lfp67m6r26tz1zh2spt7v5xxp
- 7c6xqrd8pvtt034wtd9cglp259hzy6k3
Full email verification for btopenworld.com
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
SPF / DKIM / DMARC Get 1,000 Free Credits