Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
dupageco.org
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-27 22:25:48 UTC · ↺ Refresh
MX Hostnames
- alt3.us.email.fireeyecloud.com
- primary.us.email.fireeyecloud.com
- dupageco-org.mail.protection.outlook.com
- alt1.us.email.fireeyecloud.com
- alt2.us.email.fireeyecloud.com
MX Priorities
- alt1.us.email.fireeyecloud.com: 20
- alt2.us.email.fireeyecloud.com: 30
- alt3.us.email.fireeyecloud.com: 40
- dupageco-org.mail.protection.outlook.com: 50
- primary.us.email.fireeyecloud.com: 10
A / AAAA Records
- 75.2.20.73
Mail Server IPs
- 34.223.36.122 ↩ mx.us.email.fireeyecloud.com
- 3.93.93.51 ↩ mx.us.email.fireeyecloud.com
- 34.223.36.123 ↩ mx.us.email.fireeyecloud.com
- 3.93.93.52 ↩ mx.us.email.fireeyecloud.com
- 34.223.36.121 ↩ mx.us.email.fireeyecloud.com
- 3.93.93.53 ↩ mx.us.email.fireeyecloud.com
- 52.101.11.12 ↩ mail-sa9pr09cu00104.inbound.protection.outlook.com
- 52.101.8.52 ↩ mail-ds0pr09cu00104.inbound.protection.outlook.com
- 52.101.8.50 ↩ mail-dm6pr09cu00202.inbound.protection.outlook.com
- 52.101.9.19 ↩ mail-blapr09cu00103.inbound.protection.outlook.com
- 2a01:111:f403:f904::1
- 2a01:111:f403:f90e::1
- 2a01:111:f403:f900::1
- 2a01:111:f403:f904::
SOA Record
Raw SOA
cbru.br.ns.els-gms.att.net rm-hostmaster.ems.att.com 2007102479 10800 900 604800 7200
Primary NS (mname)
cbru.br.ns.els-gms.att.net
Admin Email (rname)
rm-hostmaster@ems.att.com
Serial
2007102479
Refresh
10800s
Retry
900s
Expire
604800s
Minimum TTL
7200s
Nameservers (NS)
cbru.br.ns.els-gms.att.net
cmtu.mt.ns.els-gms.att.net
SPF Record
✓ Soft Fail (~all)
v=spf1 include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._domainkey
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
7 records- adobe-idp-site-verification=3c15c75c8e667c6c807ccb19ecb8eec4f519006aa0c45845cfe31b4732a41c4e
- adobe-sign-verification=6207809db5d356115d4036ca3530b142
- apple-domain-verification=3sMNjsIRuOEjcp3V
- SPFv=spf1 include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email ~all
- v=msv1 t=5C8DCD43-0546-4FB4-99C0-F774FD7ADCA9
- MS=ms46410564
- Jz2GG0HvkqgDRKfpKMdtibvdtQT0/pMiBCZjNA1sECzEXu/e24xiU0JH05DBhLsskuDxLDKzzV57sHvX5mTPZg==
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