Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
region10.org
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-29 18:48:28 UTC · ↺ Refresh
MX Hostnames
- region10-org.mail.protection.outlook.com
MX Priorities
- region10-org.mail.protection.outlook.com: 0
A / AAAA Records
- 34.238.178.141 ↩ ec2-34-238-178-141.compute-1.amazonaws.com
Mail Server IPs
- 52.101.42.18 ↩ mail-co1pr03cu00302.inbound.protection.outlook.com
- 52.101.41.180 ↩ mail-byapr04cu00204.inbound.protection.outlook.com
- 52.101.9.17 (no PTR)
- 52.101.41.56 ↩ mail-sj0pr21cu00100.inbound.protection.outlook.com
- 2a01:111:f403:c902:: ↩ mail-sj2pr05cu00300.inbound.protection.outlook.com
- 2a01:111:f403:f90d:: ↩ mail-sn1pr0501cu00200.inbound.protection.outlook.com
- 2a01:111:f403:c903::3 ↩ mail-mw2pr02cu00503.inbound.protection.outlook.com
- 2a01:111:f403:c922::1 ↩ mail-bl0pr05cu00501.inbound.protection.outlook.com
SOA Record
Raw SOA
april.ns.cloudflare.com dns.cloudflare.com 2400037987 10000 2400 604800 1800
Primary NS (mname)
april.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2400037987
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
zeus.ns.cloudflare.com
april.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 a:smtp.region10.org ip4:209.152.5.12 include:spf.protection.outlook.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 3 found
google._domainkey
selector1._domainkey
selector2._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- SPFv=spf1 a:smtp.region10.org ip4:209.152.5.12 include:spf.protection.outlook.com -all
- ZOOM_verify__oesBQvsS9a5QJOCMIj2tg
- _c0pryijcylzehq2fbjcwss9e3sixw1i
- apple-domain-verification=SqHNfdrog2m3eO0g
- cisco-ci-domain-verification=368fb135a2cfe371eefb79936cfd2dafe25e14a2a34e25d2dbd9c77a3a06b005
- include:spf-us.emailsignatures365.com
- sr11p9dzhwqkvkkpmpz1p8m7b9m87vh3
Full email verification for region10.org
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
SPF / DKIM / DMARC Get 1,000 Free Credits