Live data — DNS records and disposable check were just fetched and saved.
Domain Overview
DNS: ⚡ live
Checker: ⚡ live
castaner.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-09-23 05:35:42 UTC · ↺ Refresh
MX Hostnames
- castaner-com.mail.protection.outlook.com
MX Priorities
- castaner-com.mail.protection.outlook.com: 0
A / AAAA Records
- 23.227.38.65 ↩ myshopify.com
- 2620:127:f00f:5:: (no PTR)
Mail Server IPs
- 52.101.91.162 ↩ mail-matpr04cu00302.inbound.protection.outlook.com
- 52.101.103.143 ↩ mail-miypr03cu00107.inbound.protection.outlook.com
- 52.101.68.12 ↩ mail-db9pr02cu00204.inbound.protection.outlook.com
- 52.101.68.21 ↩ mail-db4pr02cu00205.inbound.protection.outlook.com
- 2a01:111:f403:ca09::28 ↩ mail-am6pr02cu00300.inbound.protection.outlook.com
- 2a01:111:f403:ca21::8 ↩ mail-matpr04cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca48::e ↩ mail-miypr03cu00206.inbound.protection.outlook.com
- 2a01:111:f403:c967::8 ↩ mail-cpjpr04cu00100.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.cdmon.net hostmaster.castaner.com 2026092101 10000 3600 604800 86400
Primary NS (mname)
ns1.cdmon.net
Admin Email (rname)
hostmaster@castaner.com
Serial
2026092101
Refresh
10000s
Retry
3600s
Expire
604800s
Minimum TTL
86400s
Nameservers (NS)
ns4.cdmondns-01.org
ns3.cdmon.net
ns1.cdmon.net
ns5.cdmondns-01.com
ns2.cdmon.net
SPF Record
✓ Soft Fail (~all)
v=spf1 include:spf.mandrillapp.com include:spf.protection.outlook.com include:mail.zendesk.com include:amazonses.com ~all
📊 DNS lookups: 4/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; pct=100
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
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
12 records- google-site-verification=JW4UFY4K9HpU5WGWhEHkwXzBBkDObW2GMIhWvUlgiGI
- yv1v1fdr9zlm6bb734y1zzjsf14dnh15
- SCbJm_j8F__YjGQiaEhYVUf5blMeCdsfx2F3kXhi7yY
- amazonses:Etr3BEscSb3RcFjLoWF3vLi5jrNpsQFxmKoqAYHkS3g=
- SPFv=spf1 include:spf.mandrillapp.com include:spf.protection.outlook.com include:mail.zendesk.com include:amazonses.com ~all
- factorial-domain-verification=2kLeCwo5N2DS6yxY8tp3ySQjEdeVJsy6M8CiPLCHcuHLBG6BmM9mKNTYX27uyhpy
- gOVYmS5t70TWVIkjjE5zjz1ePZC6gewhUgIbJfFi62Q
- anthropic-domain-verification-9xkg04=Nlpnv7VV08FChM3SY6Oe4RDud
- MS=ms62721500
- facebook-domain-verification=yzzm3umyg07qa3bxok5kstueg8626d
- klaviyo-site-verification=T8wQMG
- klaviyo-site-verification=SPgmWi
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 · Customize →
See demo & docs
Deep verification
Full email verification for castaner.com
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits