Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
sw-doebeln.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-31 21:12:25 UTC · ↺ Refresh
MX Hostnames
- mail.sw-doebeln.de
MX Priorities
- mail.sw-doebeln.de: 10
A / AAAA Records
- 2.58.54.147 ↩ root148.hostonserver.de
- 2a0d:2146:8660:1::b2 ↩ root148.hostonserver.de
Mail Server IPs
- 2.58.54.147 ↩ root148.hostonserver.de
- 2a0d:2146:8660:1::b2 ↩ root148.hostonserver.de
SOA Record
Raw SOA
ns1.machteam.de post.sw-doebeln.de 2026031805 10800 3600 1209600 10800
Primary NS (mname)
ns1.machteam.de
Admin Email (rname)
post@sw-doebeln.de
Serial
2026031805
Refresh
10800s
Retry
3600s
Expire
1209600s
Minimum TTL
10800s
Nameservers (NS)
ns2.machteam.de
ns1.machteam.de
SPF Record
✓ Strict (-all)
v=spf1 a mx a:root148.hostonserver.de include:spf.protection.outlook.com ip4:213.144.8.33 ip4:88.79.192.217 ip4:87.137.66.60 -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1:d:s; pct=10
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
⚠ Policy applies to 10% of failing messages only
DKIM Selectors
✓ 1 found
default._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: default
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
3 records- MS=ms45119546
- _telesec-domain-validation=CAAB4C59453AEDCFDB1ED9D1FCDFE15D8DEC1B56385F1FA6818B0B1177D8BF99
- SPFv=spf1 a mx a:root148.hostonserver.de include:spf.protection.outlook.com ip4:213.144.8.33 ip4:88.79.192.217 ip4:87.137.66.60 -all
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 sw-doebeln.de
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits