Domain Overview
DNS: ✓ 6h ago
Checker: ✓ 6h ago
airtec.at
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-05-20 19:06:18 UTC · ↺ Refresh
MX Hostnames
- esmtp-01.airtec.at
- backup01.nitsche.email
MX Priorities
- esmtp-01.airtec.at: 10
- backup01.nitsche.email: 100
A / AAAA Records
- 172.67.156.177 (no PTR)
- 104.21.8.17 (no PTR)
- 2606:4700:3035::6815:811 (no PTR)
- 2606:4700:3035::ac43:9cb1 (no PTR)
Mail Server IPs
- 212.67.226.217 ↩ 212067226217.static.t-mobile.at
- 212.41.244.87 ↩ esmtp-01.airtec.at
- 116.202.67.8 ↩ backup01.nitsche.email
SOA Record
Raw SOA
jill.ns.cloudflare.com dns.cloudflare.com 2403234535 10000 2400 604800 1800
Primary NS (mname)
jill.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2403234535
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
jill.ns.cloudflare.com
lars.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 a mx a:xserv01.air-tec.at a:xserv99.air-tec.at mx:airtec.wien mx:air-tec.at ip4:217.196.80.82 ip4:212.67.226.217 include:u21392154.wl155.sendgrid.net -all
📊 DNS lookups: 7/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; adkim=s; rua=mailto:[email protected]; ruf=mailto:[email protected]; pct=100; fo=0:1:d:s;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Strict
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
s1._domainkey
s2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: s1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
6 records- google-site-verification=N7IkKH683ZdYGBZaTm1-ZZ-sgjIPcqGCqg8aNfan68o
- google-site-verification=aG_s7hm4YqnorCDCRe0TzTHEWnT-ql6APG1vdAdYqYE
- SPFv=spf1 a mx a:xserv01.air-tec.at a:xserv99.air-tec.at mx:airtec.wien mx:air-tec.at ip4:217.196.80.82 ip4:212.67.226.217 include:u21392154.wl155.sendgrid.net -all
- apple-domain-verification=mCYmi1xDI6W7Ponz
- autodesk-domain-verification=J2DXs4SvNWBTj5DxBErc
- facebook-domain-verification=rbvuts009t33pybhgb03g9lritl69k
Full email verification for airtec.at
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