Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
tac4solutions.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-28 02:09:57 UTC · ↺ Refresh
MX Hostnames
- tac4solutions-com.mail.protection.outlook.com
MX Priorities
- tac4solutions-com.mail.protection.outlook.com: 10
A / AAAA Records
- 66.198.240.58 ↩ mi3-sr110.supercp.com
Mail Server IPs
- 52.101.9.17 (no PTR)
- 52.101.41.24 ↩ mail-sj0pr03cu01600.inbound.protection.outlook.com
- 52.101.194.0 ↩ mail-ch5pr02cu00200.inbound.protection.outlook.com
- 52.101.194.15 ↩ mail-ch4pr21cu00107.inbound.protection.outlook.com
- 2a01:111:f403:f910:: ↩ mail-cy5pr03cu00300.inbound.protection.outlook.com
- 2a01:111:f403:f913::1 ↩ mail-cy5pr05cu00101.inbound.protection.outlook.com
- 2a01:111:f403:c803:: ↩ mail-bn1pr21cu00200.inbound.protection.outlook.com
- 2a01:111:f403:c903::3 ↩ mail-mw2pr02cu00503.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.dyna-ns.net hostmaster.tac4solutions.com 2026012101 16384 2048 1209600 300
Primary NS (mname)
ns1.dyna-ns.net
Admin Email (rname)
hostmaster@tac4solutions.com
Serial
2026012101
Refresh
16384s
Retry
2048s
Expire
1209600s
Minimum TTL
300s
Nameservers (NS)
ns2.dyna-ns.net
ns1.dyna-ns.net
SPF Record
✓ Strict (-all)
v=spf1 a mx include:spf.protection.outlook.com include:servers.mcsv.net include:spf.mailjet.com -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1;p=quarantine; pct=90;rua=mailto:[email protected];ruf=mailto:[email protected];fo=1
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
⚠ Policy applies to 90% of failing messages only
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
5 records- QSSKJO49NGKP8M2DHVEC5KTQ0H
- MS=ms56463667
- SPFv=spf1 a mx include:spf.protection.outlook.com include:servers.mcsv.net include:spf.mailjet.com -all
- google-site-verification=5wXPFCzM50fs03ImA4EZoFdwXzl3ONp44C3ppJV8Hws
- apple-domain-verification=JxwuhCl0OJGWWWY8
Full email verification for tac4solutions.com
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
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