Domain Overview
DNS: ✓ 16h ago
Checker: ✓ 16h ago
lietz.at
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-11-10 22:13:17 UTC · ↺ Refresh
MX Hostnames
- lietz-at.mail.protection.outlook.com
MX Priorities
- lietz-at.mail.protection.outlook.com: 5
A / AAAA Records
- 85.13.129.202 ↩ dd3312.kasserver.com
Mail Server IPs
- 52.101.103.140 ↩ mail-miypr02cu00204.inbound.protection.outlook.com
- 52.101.73.145 ↩ mail-am6pr02cu00301.inbound.protection.outlook.com
- 52.101.91.162 ↩ mail-matpr04cu00302.inbound.protection.outlook.com
- 52.101.181.153 ↩ mail-wa4pr04cu00101.inbound.protection.outlook.com
- 2a01:111:f403:ca09::26 ↩ mail-am8pr83cu00106.inbound.protection.outlook.com
- 2a01:111:f403:ca09::28 ↩ mail-am6pr02cu00300.inbound.protection.outlook.com
- 2a01:111:f403:ca04::a ↩ mail-du0pr03cu00102.inbound.protection.outlook.com
- 2a01:111:f403:c967::a ↩ mail-cpjpr05cu00102.inbound.protection.outlook.com
SOA Record
Raw SOA
dns1.a1.net domainadmin.a1.net 2026062400 10800 3600 1814400 3600
Primary NS (mname)
dns1.a1.net
Admin Email (rname)
domainadmin@a1.net
Serial
2026062400
Refresh
10800s
Retry
3600s
Expire
1814400s
Minimum TTL
3600s
Nameservers (NS)
dns1.a1.net
dns2.a1.net
dns3.a1.net
SPF Record
✓ Strict (-all)
v=spf1 ip4:85.13.129.202 ip4:77.244.240.128/27 ip4:46.253.16.0/20 ip4:82.223.15.157 ip4:67.219.250.3 ip4:67.219.246.215 ip4:46.29.101.1 ip4:67.219.240.0/20 ip4:104.40.229.156 include:spf-de.emailsignatures365.com include:spf.protection.outlook.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; 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
✗ None detectedNo DKIM records found for common selectors — your provider may use a custom selector name.
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
4 records- SPFv=spf1 ip4:85.13.129.202 ip4:77.244.240.128/27 ip4:46.253.16.0/20 ip4:82.223.15.157 ip4:67.219.250.3 ip4:67.219.246.215 ip4:46.29.101.1 ip4:67.219.240.0/20 ip4:104.40.229.156 include:spf-de.emailsignatures365.com include:spf.protection.outlook.com -all
- google-site-verification=PXtVv4azz2SU13aYBXQ56-9abJnClQVf5aNkE-k0yjQ
- google-site-verification=aVL78p5KBxYEAVBdISA6QSm4kOdc09R0bHO2ZYQvCUc
- google-site-verification=mOJctUwxiEdfs1-FhwSSTgdmDgiXcMPSXaf3aIOJ0xk
Free · No signup required
Add email validation to your forms
Block disposable emails, validate MX records, detect role accounts — unlimited, forever free.
<script src="https://check.verifyswift.com/"></script>
One line of code · Works on any site · Customize →
See demo & docs
Deep verification
Full email verification for lietz.at
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits