Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
fsw.tax
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-24 01:33:26 UTC · ↺ Refresh
MX Hostnames
- maildomain.datevnet.de
- maildomain.datevnet.com
MX Priorities
- maildomain.datevnet.com: 20
- maildomain.datevnet.de: 10
A / AAAA Records
- 89.107.184.250 ↩ sa6.serverdomain.org
Mail Server IPs
- 193.27.49.221 ↩ maildomain.datevnet.com
- 193.27.49.207 ↩ maildomain.datevnet.com
- 2a00:e50:f155:7::dd ↩ maildomain.datevnet.com
- 2a00:e50:f155:7::cf ↩ maildomain.datevnet.com
- 193.27.49.220 ↩ maildomain.datevnet.de
- 193.27.49.206 ↩ maildomain.datevnet.de
- 2a00:e50:f155:7::ce ↩ maildomain.datevnet.de
- 2a00:e50:f155:7::dc ↩ maildomain.datevnet.de
SOA Record
Raw SOA
ns4i.nshost2.de role.webhostone.de 2025111604 7200 540 604800 3600
Primary NS (mname)
ns4i.nshost2.de
Admin Email (rname)
role@webhostone.de
Serial
2025111604
Refresh
7200s
Retry
540s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns5i.nshost2.net
ns4i.nshost2.de
SPF Record
✓ Soft Fail (~all)
v=spf1 include:spf.sendinblue.com include:spf.protection.outlook.com include:maildomain._spf.datev.de ~all
📊 DNS lookups: 3/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1;p=quarantine;rua=mailto:[email protected]!10m;ruf=mailto:[email protected]!10m;rf=afrf;pct=100;ri=86400
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]!10m
DKIM Selectors
✓ 3 found
selector1._domainkey
selector2._domainkey
mail._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 include:spf.sendinblue.com include:spf.protection.outlook.com include:maildomain._spf.datev.de ~all
- include:spf.sendinblue.com
- Sendinblue-code:d761058b1a6830fedaba4a3a574f66cb
- 1password-site-verification=FSZ6Q6CXQ5ABFEDETTL5T3VJBU
- MS=ms95915632
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 fsw.tax
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits