Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
itstk.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-25 23:53:43 UTC · ↺ Refresh
MX Hostnames
- itstk-com.c-v1.mx.microsoft
MX Priorities
- itstk-com.c-v1.mx.microsoft: 0
A / AAAA Records
- 44.195.188.101 ↩ ec2-44-195-188-101.compute-1.amazonaws.com
- 34.199.181.162 ↩ ec2-34-199-181-162.compute-1.amazonaws.com
Mail Server IPs
- 52.101.11.19 ↩ mail-sa9pr04cu00203.inbound.protection.outlook.com
- 52.101.11.15 ↩ mail-sa9pr02cu00207.inbound.protection.outlook.com
- 40.93.192.4 ↩ mail-dm2pr04cu00404.inbound.protection.outlook.com
- 52.101.10.12 ↩ mail-bn1pr21cu00204.inbound.protection.outlook.com
- 2a01:111:f403:c946::3 ↩ mail-ch0pr04cu00603.inbound.protection.outlook.com
- 2a01:111:f403:c92c::4 ↩ mail-dm6pr05cu00404.inbound.protection.outlook.com
- 2a01:111:f403:c936:: ↩ mail-cy1pr05cu00400.inbound.protection.outlook.com
- 2a01:111:f403:c946:: ↩ mail-ch5pr02cu00200.inbound.protection.outlook.com
SOA Record
Raw SOA
ns-1790.awsdns-31.co.uk awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-1790.awsdns-31.co.uk
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns-953.awsdns-55.net
ns-1167.awsdns-17.org
ns-1790.awsdns-31.co.uk
ns-225.awsdns-28.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; pct=100; rua=mailto:[email protected]; ruf=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
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
4 records- SPFv=spf1 include:spf.protection.outlook.com -all
- brevo-code:763f935cb9c52a6235c031b310e23815
- google-site-verification=DyF7Ec8DGQCh1hPMqMqPI5G---qSv-kVdXERARiiqqk
- site24x7-domain-verification=87451d6a08dc71f6a311c74d164220ef
Full email verification for itstk.com
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
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