Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
rosenbar.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-22 03:35:07 UTC · ↺ Refresh
MX Hostnames
- mx1.mtc-server.de
MX Priorities
- mx1.mtc-server.de: 10
A / AAAA Records
- 46.165.166.197 ↩ web1.mtc-server.de
- 2001:470:7020:1::114 ↩ web1.mtc-server.de
Mail Server IPs
- 46.165.166.203 ↩ mx1.mtc-server.de
SOA Record
Raw SOA
ns1.mtc-server.de tech.mtc-infomedia.de 1771553420 10800 3600 604800 10800
Primary NS (mname)
ns1.mtc-server.de
Admin Email (rname)
tech@mtc-infomedia.de
Serial
1771553420
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
10800s
Nameservers (NS)
ns1.mtc-server.de
ns2.mtc-server.de
ns3.mtc-server.de
SPF Record
✓ Strict (-all)
v=spf1 mx a a:web1.mtc-server.de include:spf.crsend.com -all
📊 DNS lookups: 4/10
✓ 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
✓ 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
2 records- SPFv=spf1 mx a a:web1.mtc-server.de include:spf.crsend.com -all
- MS=ms74201067
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 rosenbar.de
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits