Domain Overview
DNS: ✓ 21d ago
Checker: ✓ 21d ago
mtech.aero
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-05-20 22:59:56 UTC · ↺ Refresh
MX Hostnames
- mtech.mail.protection.office365.us
MX Priorities
- mtech.mail.protection.office365.us: 0
A / AAAA Records
- 44.209.100.126 ↩ ec2-44-209-100-126.compute-1.amazonaws.com
Mail Server IPs
- 23.103.199.138 ↩ mail-bn3usg020138.inbound.protection.outlook.com
- 23.103.199.170 ↩ mail-cy1usg020170.inbound.protection.outlook.com
- 2001:489a:2202:5::10 ↩ mail-cy1usg020010.inbound.protection.outlook.com
- 2001:489a:2202:4::10 ↩ mail-bn3usg020010.inbound.protection.outlook.com
SOA Record
Raw SOA
ns-475.awsdns-59.com awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-475.awsdns-59.com
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns-475.awsdns-59.com
ns-952.awsdns-55.net
ns-1383.awsdns-44.org
ns-1747.awsdns-26.co.uk
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.office365.us include:md02.com include:transmail.net include:zcsend.net -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; pct=100; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
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
3 records- google-site-verification=w6LUaF5b-RRiT9iLiviwlBCebRzeoJxdApUlAkV1cHs
- SPFv=spf1 include:spf.protection.office365.us include:md02.com include:transmail.net include:zcsend.net -all
- MS=ms63256271
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