Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
joerg-blaese.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-24 16:52:09 UTC · ↺ Refresh
MX Hostnames
- mail.sgstbr.de
MX Priorities
- mail.sgstbr.de: 10
A / AAAA Records
- 49.13.33.53 ↩ mail.sgstbr.de
- 2a01:4f8:c010:9fc8:a::20 ↩ lamp.sgstbr.de
Mail Server IPs
- 49.13.33.53 ↩ mail.sgstbr.de
- 2a01:4f8:c010:9fc8:a::10 ↩ mail.sgstbr.de
SOA Record
Raw SOA
ns1.sgstbr.de hostmaster.sgstbr.de 2026011802 14400 1800 604800 86400
Primary NS (mname)
ns1.sgstbr.de
Admin Email (rname)
hostmaster@sgstbr.de
Serial
2026011802
Refresh
14400s
Retry
1800s
Expire
604800s
Minimum TTL
86400s
Nameservers (NS)
ns2.sgstbr.de
ns1.sgstbr.de
SPF Record
✓ Soft Fail (~all)
v=spf1 mx ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
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
1 record- SPFv=spf1 mx ~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 joerg-blaese.de
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits