Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
tacmosas.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-01 05:47:57 UTC · ↺ Refresh
MX Hostnames
- tacmosas-com.mail.protection.outlook.com
MX Priorities
- tacmosas-com.mail.protection.outlook.com: 0
A / AAAA Records
- 3.147.219.213 ↩ ec2-3-147-219-213.us-east-2.compute.amazonaws.com
Mail Server IPs
- 52.101.11.9 ↩ mail-sn1pr02cu00101.inbound.protection.outlook.com
- 52.101.41.180 ↩ mail-byapr04cu00204.inbound.protection.outlook.com
- 52.101.50.10 ↩ mail-mw2pr02cu00502.inbound.protection.outlook.com
- 52.101.10.18 ↩ mail-bn8pr05cu00302.inbound.protection.outlook.com
- 2a01:111:f403:c902::16 ↩ mail-byapr04cu00306.inbound.protection.outlook.com
- 2a01:111:f403:f905::3 ↩ mail-dm5pr02cu00203.inbound.protection.outlook.com
- 2a01:111:f403:f902::1 ↩ mail-bl2pr02cu00101.inbound.protection.outlook.com
- 2a01:111:f403:f804::3 ↩ mail-co1pr03cu00403.inbound.protection.outlook.com
SOA Record
Raw SOA
ns-1720.awsdns-23.co.uk awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-1720.awsdns-23.co.uk
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns-1720.awsdns-23.co.uk
ns-449.awsdns-56.com
ns-910.awsdns-49.net
ns-1424.awsdns-50.org
SPF Record
✓ Strict (-all)
v=spf1 ip4:148.105.12.125 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
✗ None detectedNo DKIM records found for common selectors — your provider may use a custom selector name.
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- google-site-verification=PxomZPNIwLCTNiBSzLDFjt5bzNFB2hGf5EJADr_Y9Is
- SPFv=spf1 ip4:148.105.12.125 include:spf.protection.outlook.com -all
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