Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
about.us
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-19 10:17:49 UTC · ↺ Refresh
MX Hostnames
- about-us.mail.protection.outlook.com
MX Priorities
- about-us.mail.protection.outlook.com: 10
A / AAAA Records
- 54.85.227.149 ↩ ec2-54-85-227-149.compute-1.amazonaws.com
- 34.204.39.241 ↩ ec2-34-204-39-241.compute-1.amazonaws.com
Mail Server IPs
- 52.101.9.2 ↩ mail-mn2pr02cu00202.inbound.protection.outlook.com
- 52.101.9.0 ↩ mail-bl2pr02cu00100.inbound.protection.outlook.com
- 52.101.10.18 ↩ mail-bn8pr05cu00302.inbound.protection.outlook.com
- 52.101.40.2 ↩ mail-cy1pr05cu00402.inbound.protection.outlook.com
- 2a01:111:f403:c92c::2 ↩ mail-dm2pr04cu00102.inbound.protection.outlook.com
- 2a01:111:f403:c922:: ↩ mail-bl0pr03cu00200.inbound.protection.outlook.com
- 2a01:111:f403:c946::3 ↩ mail-ch0pr04cu00603.inbound.protection.outlook.com
- 2a01:111:f403:f802::3 ↩ mail-sj0pr03cu01403.inbound.protection.outlook.com
SOA Record
Raw SOA
pdns1.ultradns.net sec_grp.neustar.com 1298801758 10800 3600 604800 600
Primary NS (mname)
pdns1.ultradns.net
Admin Email (rname)
sec_grp@neustar.com
Serial
1298801758
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
600s
Nameservers (NS)
pdns4.ultradns.org
pdns5.ultradns.info
pdns6.ultradns.co.uk
udns1.ultradns.net
udns2.ultradns.net
pdns1.ultradns.net
pdns2.ultradns.net
pdns3.ultradns.org
SPF Record
✓ Soft Fail (~all)
v=spf1 include:spf.protection.outlook.com include:spf-0018ba01.pphosted.com include:_spf.createsend.com include:_spf.salesforce.com ip4:156.154.17.216 ip4:156.154.25.104 ip4:156.154.17.104 ip4:156.154.134.1 ip4:156.154.16.225 ip4:156.154.24.226 ~all
📊 DNS lookups: 4/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; sp=reject; rua=mailto:[email protected],mailto:[email protected]; ruf=mailto:[email protected]; pct=100; rf=afrf; fo=1;
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected]
↳ Subdomain policy: reject
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- SPFv=spf1 include:spf.protection.outlook.com include:spf-0018ba01.pphosted.com include:_spf.createsend.com include:_spf.salesforce.com ip4:156.154.17.216 ip4:156.154.25.104 ip4:156.154.17.104 ip4:156.154.134.1 ip4:156.154.16.225 ip4:156.154.24.226 ~all
- include spfa.protection.outlook.com
- amazonses:5QxLIWcoVQFlFRNLz/iEkYZM4vTetoX2sA800xoOxe8=
- FakNEKZRRTqjsp3Q59LrQjobwpS5buYdYmSS4G3KJYlCQHSACa0MWLXKNPy1FaV2vQp0+X1iRTbys4uFvXImaQ==
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