Domain Overview
DNS: ✓ 1mo ago
Checker: ✓ 1mo ago
mastechno.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-06 15:16:13 UTC · ↺ Refresh
MX Hostnames
- mastechno-com.mail.protection.outlook.com
MX Priorities
- mastechno-com.mail.protection.outlook.com: 0
A / AAAA Records
- 104.21.86.84 (no PTR)
- 172.67.217.44 (no PTR)
- 2606:4700:3030::ac43:d92c
- 2606:4700:3032::6815:5654
Mail Server IPs
- 52.101.9.12 ↩ mail-bl0pr05cu00504.inbound.protection.outlook.com
- 52.101.40.0 ↩ mail-cy5pr03cu00300.inbound.protection.outlook.com
- 52.101.10.1 ↩ mail-bn6pr02cu00301.inbound.protection.outlook.com
- 52.101.41.0 ↩ mail-byapr05cu00400.inbound.protection.outlook.com
- 2a01:111:f403:c91d::b ↩ mail-mw2pr02cu00603.inbound.protection.outlook.com
- 2a01:111:f403:f90a::1 ↩ mail-bn8pr03cu00201.inbound.protection.outlook.com
- 2a01:111:f403:c92c::2 ↩ mail-dm2pr04cu00102.inbound.protection.outlook.com
- 2a01:111:f403:f902:: ↩ mail-bl2pr04cu00100.inbound.protection.outlook.com
SOA Record
Raw SOA
ram.ns.cloudflare.com dns.cloudflare.com 2399838354 10000 2400 604800 1800
Primary NS (mname)
ram.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399838354
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
ram.ns.cloudflare.com
rihana.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.sendinblue.com include:spf.protection.outlook.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; sp=none; rua=mailto:[email protected]!10m; ruf=mailto:[email protected]!10m; rf=afrf; pct=100; ri=86400
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]!10m
↳ Subdomain policy: none
DKIM Selectors
✓ 2 found
mail._domainkey
k1._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: mail
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
3 records- SPFv=spf1 include:spf.sendinblue.com include:spf.protection.outlook.com -all
- Sendinblue-code:573cee09155e25604a69bd1120d8d957
- google-site-verification=sBHjUXPyCRr90AXJ1GM86I8YuZYbzLioyGvDbMsnbUA
Full email verification for mastechno.com
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
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