Domain Overview
DNS: ✓ 21h ago
Checker: ✓ 21h ago
septicblue.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-05-21 06:54:09 UTC · ↺ Refresh
MX Hostnames
- septicblue-com.mail.protection.outlook.com
MX Priorities
- septicblue-com.mail.protection.outlook.com: 1
A / AAAA Records
- 72.52.253.68 ↩ host.twddomain.com
Mail Server IPs
- 52.101.40.1 ↩ mail-cy4pr03cu00101.inbound.protection.outlook.com
- 52.101.41.24 ↩ mail-sj0pr03cu01600.inbound.protection.outlook.com
- 52.101.9.11 ↩ mail-bl2pr04cu00103.inbound.protection.outlook.com
- 52.101.41.180 ↩ mail-byapr04cu00204.inbound.protection.outlook.com
- 2a01:111:f403:f90a:: ↩ mail-bn6pr02cu00300.inbound.protection.outlook.com
- 2a01:111:f403:c946::5 ↩ mail-ch4pr21cu00105.inbound.protection.outlook.com
- 2a01:111:f403:f802::1 ↩ mail-sj2pr05cu00101.inbound.protection.outlook.com
- 2a01:111:f403:c946::1 ↩ mail-ch1pr04cu00101.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.iboostsupport.com support.iboostweb.com 2026051500 3600 1800 1209600 86400
Primary NS (mname)
ns1.iboostsupport.com
Admin Email (rname)
support@iboostweb.com
Serial
2026051500
Refresh
3600s
Retry
1800s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns1.iboostsupport.com
ns2.iboostsupport.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:72.52.253.68 include:spf.protection.outlook.com exists:%{i}._spf.inkyphishfence.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 3 found
selector1._domainkey
selector2._domainkey
default._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
3 records- apple-domain-verification=kDNnwUuIRJgI3gcS
- SPFv=spf1 ip4:72.52.253.68 include:spf.protection.outlook.com exists:%{i}._spf.inkyphishfence.com -all
- MS=ms99549921
Free · No signup required
Add email validation to your forms
Block disposable emails, validate MX records, detect role accounts — unlimited, forever free.
<script src="https://check.verifyswift.com/"></script>
One line of code · Works on any site
See demo & docs
Deep verification
Full email verification for septicblue.com
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits