Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
crp.pe
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-31 06:32:07 UTC · ↺ Refresh
MX Hostnames
- crp-pe.mail.protection.outlook.com
MX Priorities
- crp-pe.mail.protection.outlook.com: 0
A / AAAA Records
- 16.15.187.24 (no PTR)
- 16.182.36.253 ↩ s3-website-us-east-1.amazonaws.com
- 16.15.183.66
- 54.231.136.189
- 16.15.252.85
- 16.15.183.96
- 16.15.252.255
- 16.15.191.12
Mail Server IPs
- 40.93.192.4 ↩ mail-dm2pr04cu00404.inbound.protection.outlook.com
- 52.101.41.183 ↩ mail-byapr04cu00307.inbound.protection.outlook.com
- 52.101.50.4 ↩ mail-co1pr03cu00404.inbound.protection.outlook.com
- 52.101.194.3 ↩ mail-ch1pr04cu00103.inbound.protection.outlook.com
- 2a01:111:f403:f90d::1 ↩ mail-sn1pr0501cu00301.inbound.protection.outlook.com
- 2a01:111:f403:f910:: ↩ mail-cy5pr03cu00300.inbound.protection.outlook.com
- 2a01:111:f403:c92c::4 ↩ mail-dm6pr05cu00404.inbound.protection.outlook.com
- 2a01:111:f403:c946::2 ↩ mail-ch4pr04cu00102.inbound.protection.outlook.com
SOA Record
Raw SOA
ns-162.awsdns-20.com awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-162.awsdns-20.com
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns-1981.awsdns-55.co.uk
ns-1016.awsdns-63.net
ns-1356.awsdns-41.org
ns-162.awsdns-20.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:190.81.117.67 ip4:181.65.251.50 include:_spf.embluemail.com include:amazonses.com include:spf.intiza.com include:spf.protection.outlook.com -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; adkim=s; aspf=s; pct=100;
✓ Reject — strongest protection
📋 SPF alignment: Strict
· DKIM alignment: Strict
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._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
4 records- MS=ms74385871
- SPFv=spf1 ip4:190.81.117.67 ip4:181.65.251.50 include:_spf.embluemail.com include:amazonses.com include:spf.intiza.com include:spf.protection.outlook.com -all
- MS=3A1CC30F918CF43DD7BC83BD89B430FBAE4DBF0F
- MS=ms37758174
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 crp.pe
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits