Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
rptechnik.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-03 03:17:40 UTC · ↺ Refresh
MX Hostnames
- rptechnik-de.mail.protection.outlook.com
MX Priorities
- rptechnik-de.mail.protection.outlook.com: 10
A / AAAA Records
- 92.205.94.12 (no PTR)
Mail Server IPs
- 52.101.68.27 ↩ mail-db7pr03cu00503.inbound.protection.outlook.com
- 52.101.73.22 ↩ mail-am7pr05cu00106.inbound.protection.outlook.com
- 52.101.73.15 ↩ mail-am9pr04cu00107.inbound.protection.outlook.com
- 52.101.73.6 ↩ mail-am6pr04cu00306.inbound.protection.outlook.com
- 2a01:111:f403:ca09::7 ↩ mail-am9pr04cu00107.inbound.protection.outlook.com
- 2a01:111:f403:ca09::3 ↩ mail-am6pr04cu00303.inbound.protection.outlook.com
- 2a01:111:f403:ca09::20 ↩ mail-as8pr05cu00400.inbound.protection.outlook.com
- 2a01:111:f403:ca04::d ↩ mail-db6pr03cu00105.inbound.protection.outlook.com
SOA Record
Raw SOA
ns63.domaincontrol.com dns.jomax.net 2026022502 28800 7200 604800 600
Primary NS (mname)
ns63.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2026022502
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s
Nameservers (NS)
ns63.domaincontrol.com
ns64.domaincontrol.com
SPF Record
✓ Soft Fail (~all)
v=spf1 ip4:188.111.112.122 ip4:88.79.179.66 ip4:130.255.79.68 ip4:167.235.87.176/28 include:spf.protection.outlook.com include:spf.emailsignatures365.com -all
📊 DNS lookups: 2/10
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
4 records- apple-domain-verification=QVh53QWCw7oiJRi0
- dttytxytbrk5sgdm16fvj8y3frshmtdy
- 3g1z268nfk82vgmjbxwrqyl9cc2d4rwf
- SPFv=spf1 ip4:188.111.112.122 ip4:88.79.179.66 ip4:130.255.79.68 ip4:167.235.87.176/28 include:spf.protection.outlook.com include:spf.emailsignatures365.com -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 rptechnik.de
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits