Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
arce.org
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-21 08:43:06 UTC · ↺ Refresh
MX Hostnames
- arce-org.mail.protection.outlook.com
MX Priorities
- arce-org.mail.protection.outlook.com: 0
A / AAAA Records
- 104.26.10.78 (no PTR)
- 104.26.11.78 (no PTR)
- 172.67.74.18
- 2606:4700:20::681a:a4e
- 2606:4700:20::ac43:4a12
- 2606:4700:20::681a:b4e
Mail Server IPs
- 52.101.11.10 ↩ mail-sa9pr03cu00202.inbound.protection.outlook.com
- 52.101.10.6 ↩ mail-bn1pr21cu00106.inbound.protection.outlook.com
- 52.101.11.9 ↩ mail-sn1pr02cu00101.inbound.protection.outlook.com
- 52.101.8.46 ↩ mail-dm6pr05cu00406.inbound.protection.outlook.com
- 2a01:111:f403:f802::2 ↩ mail-sj2pr05cu00202.inbound.protection.outlook.com
- 2a01:111:f403:f902:: ↩ mail-bl2pr04cu00100.inbound.protection.outlook.com
- 2a01:111:f403:c931:: ↩ mail-sn1pr02cu00100.inbound.protection.outlook.com
- 2a01:111:f403:c946::5 ↩ mail-ch4pr21cu00105.inbound.protection.outlook.com
SOA Record
Raw SOA
jillian.ns.cloudflare.com dns.cloudflare.com 2399401468 10000 2400 604800 1800
Primary NS (mname)
jillian.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399401468
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
marty.ns.cloudflare.com
jillian.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; sp=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected]; adkim=r; aspf=r; ri=86400; fo=1; pct=100
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: quarantine
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._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- SPFv=spf1 include:spf.protection.outlook.com -all
- L3ZRFLFIXHA1YQRE2QQCN2T1JIQMSOKD49UYLFVW
- MS=ms79657544
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