Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
apco.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-18 06:57:02 UTC · ↺ Refresh
MX Hostnames
- apco-com.mail.protection.outlook.com
MX Priorities
- apco-com.mail.protection.outlook.com: 0
A / AAAA Records
- 35.185.201.141 ↩ 141.201.185.35.bc.googleusercontent.com
Mail Server IPs
- 52.101.11.13 ↩ mail-sn1pr0501cu00205.inbound.protection.outlook.com
- 52.101.194.17 ↩ mail-ch5pr02cu00401.inbound.protection.outlook.com
- 52.101.10.16 ↩ mail-bn6pr21cu00500.inbound.protection.outlook.com
- 52.101.42.18 ↩ mail-co1pr03cu00302.inbound.protection.outlook.com
- 2a01:111:f403:c946::1 ↩ mail-ch1pr04cu00101.inbound.protection.outlook.com
- 2a01:111:f403:c902::16 ↩ mail-byapr04cu00306.inbound.protection.outlook.com
- 2a01:111:f403:f910:: ↩ mail-cy5pr03cu00300.inbound.protection.outlook.com
- 2a01:111:f403:c902::4 ↩ mail-sj0pr03cu01504.inbound.protection.outlook.com
SOA Record
Raw SOA
ns27.worldnic.com namehost.worldnic.com 125071109 10800 3600 604800 3600
Primary NS (mname)
ns27.worldnic.com
Admin Email (rname)
namehost@worldnic.com
Serial
125071109
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns27.worldnic.com
ns28.worldnic.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:96.11.180.182 ip4:162.214.155.91 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✓ 2 found
s1._domainkey
s2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: s1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
1 record- SPFv=spf1 ip4:96.11.180.182 ip4:162.214.155.91 include:spf.protection.outlook.com -all
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