Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
oldorf.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-01 00:43:51 UTC · ↺ Refresh
MX Hostnames
- webs1.webstrategy.de
MX Priorities
- webs1.webstrategy.de: 10
A / AAAA Records
- 212.6.181.226 ↩ webs1.webstrategy.de
Mail Server IPs
- 212.6.181.226 ↩ webs1.webstrategy.de
SOA Record
Raw SOA
dns3.webstrategy.de hostmaster.webstrategy.de 2024120301 14400 3600 604800 3600
Primary NS (mname)
dns3.webstrategy.de
Admin Email (rname)
hostmaster@webstrategy.de
Serial
2024120301
Refresh
14400s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
dns3.webstrategy.de
dns4.webstrategy.de
SPF Record
✓ Soft Fail (~all)
v=spf1 +mx +a +ip4:212.6.181.226 +include:mailgw01.webstrategy.de +include:webstrategy.de ~all
📊 DNS lookups: 4/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject;
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
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 +a +ip4:212.6.181.226 +include:mailgw01.webstrategy.de +include:webstrategy.de ~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 oldorf.de
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits