Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
matsugov.us
Yes
✓ Yes
Barracuda
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-23 10:04:45 UTC · ↺ Refresh
MX Hostnames
- d159096b.ess.barracudanetworks.com
- d159096a.ess.barracudanetworks.com
MX Priorities
- d159096b.ess.barracudanetworks.com: 0
- d159096a.ess.barracudanetworks.com: 0
A / AAAA Records
- 216.137.207.37 ↩ 37-207-137-216.mtaonline.net
Mail Server IPs
- 209.222.82.253 ↩ mail.ess.barracuda.com
- 209.222.82.252 ↩ mail.ess.barracuda.com
- 209.222.82.255 ↩ mail.ess.barracuda.com
SOA Record
Raw SOA
ns-1520.awsdns-62.org awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-1520.awsdns-62.org
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns-1520.awsdns-62.org
ns-1539.awsdns-00.co.uk
ns-963.awsdns-56.net
ns-119.awsdns-14.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:216.137.207.11 include:_spf.psm.knowbe4.com include:spf.ess.barracudanetworks.com include:spf.protection.outlook.com include:_spf-eus.teamdynamix.com -all
📊 DNS lookups: 4/10
✓ 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
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 216 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
7 records- SPFv=spf1 ip4:216.137.207.11 include:_spf.psm.knowbe4.com include:spf.ess.barracudanetworks.com include:spf.protection.outlook.com include:_spf-eus.teamdynamix.com -all
- MS=3484020ADEB68D388CD3F4609FBD1EB8B773A6F9
- adobe-idp-site-verification=6027e24e33bacd61280f1010b7ec74829e2a1113eae6ab9d458d35d25e058ab6
- apple-domain-verification=ILLSA5mhtAkaY60H
- facebook-domain-verification=npic94egw453gcm07gspbcur2ru9sb
- facebook-domain-verification=pvp937zzb7zvy794tlss6zg59jqwm0
- google-site-verification=5VmIST35cOFurmKl-S_vcEPks6GasiAq1Hj5U91A8-I
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 matsugov.us
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits