Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
iugu.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-20 15:15:28 UTC · ↺ Refresh
MX Hostnames
- iugu-com.mail.protection.outlook.com
MX Priorities
- iugu-com.mail.protection.outlook.com: 0
A / AAAA Records
- 104.18.19.83 (no PTR)
- 104.18.18.83 (no PTR)
Mail Server IPs
- 52.101.41.26 ↩ mail-sj0pr03cu01702.inbound.protection.outlook.com
- 52.101.8.34 ↩ mail-dm2pr04cu00102.inbound.protection.outlook.com
- 52.101.11.9 ↩ mail-sn1pr02cu00101.inbound.protection.outlook.com
- 52.101.194.4 ↩ mail-ch4pr04cu00104.inbound.protection.outlook.com
- 2a01:111:f403:f90a::1 ↩ mail-bn8pr03cu00201.inbound.protection.outlook.com
- 2a01:111:f403:f908::2 ↩ mail-bn8pr05cu00102.inbound.protection.outlook.com
- 2a01:111:f403:c902::5 ↩ mail-sj2pr05cu00505.inbound.protection.outlook.com
- 2a01:111:f403:f901::2 ↩ mail-bl2pr02cu00402.inbound.protection.outlook.com
SOA Record
Raw SOA
bonnie.ns.cloudflare.com dns.cloudflare.com 2399504868 10000 2400 604800 1800
Primary NS (mname)
bonnie.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399504868
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
bonnie.ns.cloudflare.com
coby.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 include:support.zendesk.com include:smtp.zendesk.com include:mail.zendesk.com include:spf.mandrillapp.com include:spf.ecentry.io include:spf.protection.outlook.com include:23521922.spf06.hubspotemail.net a mx -all
📊 DNS lookups: 9/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; sp=none; fo=0; ri=86400; rua=mailto:[email protected]; ruf=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: none
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._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
15 records- uber-domain-verification=2acaff48-d997-4859-9e36-f66f468c0c2a
- ftpqol2hhsovdfkgh6uicnfk1q
- anthropic-domain-verification-nvcf73=pltteiQo5LNwBI5nKFeeoZQmF
- godaddy-domain-verification=ilveqt0urdkffraqgd6fa8j25q
- apple-domain-verification=3KjVOlcnERtp5wgZ
- 6co51nj06k6sc919vgc7i5r48q
- notion_verify_.pUy,4JVb,1=K3gR1zxtA4!=wz.~4n_BWpVqG)a*EW)=p%?y}QAujxAxhGVpv5w~RrF65>
- globalsign-domain-verification=Qz9JadtpmmWfsvcBc8qbPVH6sgPi3n-79l57Kh6IG1
- godaddy-domain-verification=ivk78lf34kfl0ltkgapn10na0b
- globalsign-domain-verification=Dy12ZdskT3nGi1TUqwt-AeMO0PHRKO3RGc01LTDGr_
- google-site-verification=fk0I48dC298A4chifjyqb69WCwz_ghkQ_9dR9ho4_Bg
- google-site-verification=tuiR1etZ9Ygnh153LKcF0gADTsUj8IrdqOPbyxr0JRs
- X8Q6/pFDgm+KhVeUvcQ0IZHFBURJ8WuPAHnIq16Y4n4=
- ZOOM_verify_UuKJGGI0QDWrIhbiV4Rtzg
- SPFv=spf1 include:support.zendesk.com include:smtp.zendesk.com include:mail.zendesk.com include:spf.mandrillapp.com include:spf.ecentry.io include:spf.protection.outlook.com include:23521922.spf06.hubspotemail.net a mx -all
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 iugu.com
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits