Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
koltin.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-24 17:15:25 UTC · ↺ Refresh
MX Hostnames
- koltin-com.mail.protection.outlook.com
MX Priorities
- koltin-com.mail.protection.outlook.com: 0
A / AAAA Records
- 172.67.68.114 (no PTR)
- 104.26.10.235 (no PTR)
- 104.26.11.235
- 2606:4700:20::681a:aeb
- 2606:4700:20::ac43:4472
- 2606:4700:20::681a:beb
Mail Server IPs
- 52.101.9.14 ↩ mail-bl0pr03cu00206.inbound.protection.outlook.com
- 52.101.8.44 ↩ mail-dm5pr04cu00104.inbound.protection.outlook.com
- 52.101.9.20 ↩ mail-bl0pr02cu00604.inbound.protection.outlook.com
- 40.93.192.4 ↩ mail-dm2pr04cu00404.inbound.protection.outlook.com
- 2a01:111:f403:f805::1 ↩ mail-co1pr03cu00301.inbound.protection.outlook.com
- 2a01:111:f403:f913:: ↩ mail-cy1pr03cu00100.inbound.protection.outlook.com
- 2a01:111:f403:c801::1 ↩ mail-sn1pr0501cu00101.inbound.protection.outlook.com
- 2a01:111:f403:f905::4 ↩ mail-dm2pr04cu00404.inbound.protection.outlook.com
SOA Record
Raw SOA
laila.ns.cloudflare.com dns.cloudflare.com 2398895497 10000 2400 604800 1800
Primary NS (mname)
laila.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2398895497
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
laila.ns.cloudflare.com
zod.ns.cloudflare.com
SPF Record
✓ Soft Fail (~all)
v=spf1 include:mta.infogressive.com include:spf.protection.outlook.com include:servers.mcsv.net ~all
📊 DNS lookups: 3/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✓ 3 found
selector1._domainkey
selector2._domainkey
k1._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
3 records- google-site-verification=CreFlvlasc80zmxd6TajgS7b9KhX4jy-Y0vb0oXcTZo
- SPFv=spf1 include:mta.infogressive.com include:spf.protection.outlook.com include:servers.mcsv.net ~all
- MS=ms63639966
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 koltin.com
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits