bastian-renner.de

Valid Email Server
Domain Lookup › bastian-renner.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
bastian-renner.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-04-02 06:10:49 UTC · ↺ Refresh

MX Hostnames

  • mail.rwsys.net

MX Priorities

  • mail.rwsys.net: 50

A / AAAA Records

  • 157.90.130.48 ↩ rwsys.net
  • 2a01:4f8:252:438f::2 ↩ rwsys.net

Mail Server IPs

  • 157.90.130.48 ↩ rwsys.net
  • 2a01:4f8:252:438f::2 ↩ rwsys.net

SOA Record

Raw SOA ns57.domaincontrol.com dns.jomax.net 2024011601 28800 7200 604800 600
Primary NS (mname)
ns57.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2024011601
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s

Nameservers (NS)

ns57.domaincontrol.com
ns58.domaincontrol.com

SPF Record

✓ Strict (-all)
v=spf1 mx -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

DKIM Selectors

✓ 1 found
default._domainkey
✓ Public key: 392 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

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 bastian-renner.de

SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.

No credit card required
Get 1,000 Free Credits