Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
vst-pro.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-30 13:35:37 UTC · ↺ Refresh
MX Hostnames
- vstpro-de0i.mail.protection.outlook.com
MX Priorities
- vstpro-de0i.mail.protection.outlook.com: 10
A / AAAA Records
- 37.202.0.94 (no PTR)
Mail Server IPs
- 52.101.168.0 ↩ mail-beup281cu00100.inbound.protection.outlook.com
- 52.101.170.2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
- 52.101.170.1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
- 52.101.170.0 ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
- 2a01:111:f403:ca2d:: ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
- 2a01:111:f403:ca27:: ↩ mail-beup281cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca2d::1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
- 2a01:111:f403:ca2d::2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
SOA Record
Raw SOA
ns01.agenturserver.de support.mittwald.de 1774850334 28800 7200 604800 3600
Primary NS (mname)
ns01.agenturserver.de
Admin Email (rname)
support@mittwald.de
Serial
1774850334
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns01.agenturserver.it
ns01.agenturserver.co
ns01.agenturserver.de
SPF Record
✓ Strict (-all)
v=spf1 ip4:212.172.37.164 ip4:212.172.37.169 ip4:212.172.37.165 ip4:212.172.37.167 ip4:185.40.172.25 ip4:185.30.32.104 ip4:185.30.32.204 include:agenturserver.de include:spf.protection.outlook.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1
~ 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: 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
5 records- SPFv=spf1 ip4:212.172.37.164 ip4:212.172.37.169 ip4:212.172.37.165 ip4:212.172.37.167 ip4:185.40.172.25 ip4:185.30.32.104 ip4:185.30.32.204 include:agenturserver.de include:spf.protection.outlook.com -all
- zone-ownership-verification-242c29b3254a3c4f3e1ea41a6e0c2d8146e3303c25f355dc425642ddf2c71d7e
- anthropic-domain-verification-5vav4g=zDe9PjuiGNXeqOVXn30XFtp8j
- linkedin-site-verification=957f560e-4455-4bcf-a158-cc79193858b1
- google-site-verification=Y9UsVMsFs-ayIXvUVQ4MEPQMo4MRd0CUi-K9RIuF3z0
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
See demo & docs
Deep verification
Full email verification for vst-pro.de
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits