Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
callero.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-23 08:54:18 UTC · ↺ Refresh
MX Hostnames
- callero-com.mail.protection.outlook.com
MX Priorities
- callero-com.mail.protection.outlook.com: 0
A / AAAA Records
- 44.226.107.251 ↩ ec2-44-226-107-251.us-west-2.compute.amazonaws.com
Mail Server IPs
- 52.101.194.4 ↩ mail-ch4pr04cu00104.inbound.protection.outlook.com
- 52.101.11.10 ↩ mail-sa9pr03cu00202.inbound.protection.outlook.com
- 52.101.40.1 ↩ mail-cy4pr03cu00101.inbound.protection.outlook.com
- 52.101.41.54 ↩ mail-sj2pr05cu00506.inbound.protection.outlook.com
- 2a01:111:f403:f912:: ↩ mail-cy5pr03cu00200.inbound.protection.outlook.com
- 2a01:111:f403:f804::2 ↩ mail-co1pr05cu00402.inbound.protection.outlook.com
- 2a01:111:f403:f901:: ↩ mail-mn2pr04cu00200.inbound.protection.outlook.com
- 2a01:111:f403:c946::5 ↩ mail-ch4pr21cu00105.inbound.protection.outlook.com
SOA Record
Raw SOA
ns53.worldnic.com namehost\@worldnic.com 124111816 10800 3600 604800 3600
Primary NS (mname)
ns53.worldnic.com
Admin Email (rname)
namehost\@worldnic@com
Serial
124111816
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns53.worldnic.com
ns54.worldnic.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:servers.mcsv.net -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
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- MS=ms93828746
- SPFv=spf1 include:spf.protection.outlook.com include:servers.mcsv.net -all
- google-site-verification=HymwI93dKwOH35rmLcW1vUdkL-fp49g_mPqkQyw2AXk
Full email verification for callero.com
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