Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
ott-jakob.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-02 06:06:26 UTC · ↺ Refresh
MX Hostnames
- asg220.ott-jakob.de
- mail.ott-jakob.de
MX Priorities
- mail.ott-jakob.de: 10
- asg220.ott-jakob.de: 20
A / AAAA Records
- 136.243.43.138 ↩ static.138.43.243.136.clients.your-server.de
Mail Server IPs
- 195.243.136.91 ↩ mail.ott-jakob.de
- 195.243.136.94 ↩ asg220.ott-jakob.de
SOA Record
Raw SOA
ns4.stratoserver.net hostmaster.strato-rz.de 2020051450 86400 7200 604800 300
Primary NS (mname)
ns4.stratoserver.net
Admin Email (rname)
hostmaster@strato-rz.de
Serial
2020051450
Refresh
86400s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
ns3.stratoserver.net
ns4.stratoserver.net
SPF Record
✓ Soft Fail (~all)
v=spf1 mx a a:infothek.ott-jakob.de ~all
📊 DNS lookups: 3/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1;p=reject;pct=100;rua=mailto:[email protected];ruf=mailto:[email protected];ri=86400;fo=1;
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 1 found
dkim._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: dkim
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
1 record- SPFv=spf1 mx a a:infothek.ott-jakob.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 ott-jakob.de
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits