Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
dcprep.org
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-18 05:48:18 UTC · ↺ Refresh
MX Hostnames
- dcprep-org.mail.protection.outlook.com
MX Priorities
- dcprep-org.mail.protection.outlook.com: 0
A / AAAA Records
- 162.159.134.42 (no PTR)
Mail Server IPs
- 52.101.10.14 ↩ mail-bn6pr04cu00206.inbound.protection.outlook.com
- 52.101.40.0 ↩ mail-cy5pr03cu00300.inbound.protection.outlook.com
- 52.101.11.13 ↩ mail-sn1pr0501cu00205.inbound.protection.outlook.com
- 52.101.41.22 ↩ mail-sj2pr05cu00406.inbound.protection.outlook.com
- 2a01:111:f403:c946::7 ↩ mail-ch5pr02cu00307.inbound.protection.outlook.com
- 2a01:111:f403:c903::3 ↩ mail-mw2pr02cu00503.inbound.protection.outlook.com
- 2a01:111:f403:c92c::4 ↩ mail-dm6pr05cu00404.inbound.protection.outlook.com
- 2a01:111:f403:f802::1 ↩ mail-sj2pr05cu00101.inbound.protection.outlook.com
SOA Record
Raw SOA
kareem.ns.cloudflare.com dns.cloudflare.com 2398832817 10000 2400 604800 1800
Primary NS (mname)
kareem.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2398832817
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
kareem.ns.cloudflare.com
kim.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:_spf.salesforce.com include:mg-spf.greenhouse.io include:customerspf.schoolmessenger.com include:45284025.spf01.hubspotemail.net include:mail.zendesk.com ip4:72.15.254.252 include:sendgrid.net -all
📊 DNS lookups: 7/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; 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]
DKIM Selectors
✓ 5 found
google._domainkey
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: google
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
7 records- ca3-6283ade752bf4baaacf5bdcd34c79ef7
- ca3-9d6a353f78754a6fbd219cef2ea6fe86
- flqis946k6s0a4uf5vvd27nnkh
- google-site-verification=VnhEqlRnLpDzWi9Vh_WkayTvt97GzwGeeg_mzdsxb7g
- SPFv=spf1 include:spf.protection.outlook.com include:_spf.salesforce.com include:mg-spf.greenhouse.io include:customerspf.schoolmessenger.com include:45284025.spf01.hubspotemail.net include:mail.zendesk.com ip4:72.15.254.252 include:sendgrid.net -all
- MS=ms93363003
- QYGyBgb28xfopk7V07fgCdn1ZmgJ0s51Dvq+LtcKnzNzOoxhFQj2d/idn/XC0Q0VNimwBS+SZ3B/D9wTSsVFLw==
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 dcprep.org
SMTP handshake, catch-all detection, SPF/DKIM/DMARC analysis, and Yahoo/Outlook verification.
Get 1,000 Free Credits