Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
rotenburgerwerke.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-21 16:44:47 UTC · ↺ Refresh
MX Hostnames
- rotenburgerwerke-de.mail.protection.outlook.com
MX Priorities
- rotenburgerwerke-de.mail.protection.outlook.com: 0
A / AAAA Records
- 188.94.248.168 ↩ r953.agenturserver.it
Mail Server IPs
- 52.101.68.12 ↩ mail-db9pr02cu00204.inbound.protection.outlook.com
- 52.101.73.16 ↩ mail-as2pr05cu00100.inbound.protection.outlook.com
- 52.101.73.6 ↩ mail-am6pr04cu00306.inbound.protection.outlook.com
- 52.101.68.18 ↩ mail-db4pr02cu00302.inbound.protection.outlook.com
- 2a01:111:f403:ca04::b ↩ mail-dbbpr03cu00103.inbound.protection.outlook.com
- 2a01:111:f403:ca09::3 ↩ mail-am6pr04cu00303.inbound.protection.outlook.com
- 2a01:111:f403:ca09::c ↩ mail-as8pr05cu00304.inbound.protection.outlook.com
- 2a01:111:f403:ca04::9 ↩ mail-db7pr03cu00601.inbound.protection.outlook.com
SOA Record
Raw SOA
ns01.agenturserver.de support.mittwald.de 1771255475 28800 7200 604800 3600
Primary NS (mname)
ns01.agenturserver.de
Admin Email (rname)
support@mittwald.de
Serial
1771255475
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns01.agenturserver.de
ns01.agenturserver.co
ns01.agenturserver.it
SPF Record
✓ Soft Fail (~all)
v=spf1 a:mail.rotenburgerwerke.de ip4:80.156.6.160/29 include:spf.de.umantis.com include:agenturserver.de include:spf.protection.outlook.com ~all
📊 DNS lookups: 4/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; aspf=r; adkim=r
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
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- NObE1IoafgQ2RMIbcN/t8w5rwqIBXS4FTIyrqk43kH8DtmELkiCnS9saswprDm48gNazmqIAbZmzuBHYzquTQg==
- sophos-domain-verification=59f8d2c7bf0da38686a64788ca1873c116c3812c1f5b0c8d447b3a96ebb93bb7
- apple-domain-verification=Y2JtoMNWPAdsanAd
- SPFv=spf1 a:mail.rotenburgerwerke.de ip4:80.156.6.160/29 include:spf.de.umantis.com include:agenturserver.de include:spf.protection.outlook.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 rotenburgerwerke.de
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits