Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
dw.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-25 05:04:08 UTC · ↺ Refresh
MX Hostnames
- dw-com.mail.protection.outlook.com
MX Priorities
- dw-com.mail.protection.outlook.com: 10
A / AAAA Records
- 194.55.30.46 ↩ hoelderlin.dwelle.de
- 194.55.26.46 ↩ hoelderlin.dwelle.de
Mail Server IPs
- 52.101.73.1 ↩ mail-am3pr04cu00501.inbound.protection.outlook.com
- 52.101.68.32 ↩ mail-db3pr0202cu00200.inbound.protection.outlook.com
- 52.101.68.21 ↩ mail-db4pr02cu00205.inbound.protection.outlook.com
- 52.101.68.25 ↩ mail-db8pr02cu00101.inbound.protection.outlook.com
- 2a01:111:f403:ca09::20 ↩ mail-as8pr05cu00400.inbound.protection.outlook.com
- 2a01:111:f403:ca09::6 ↩ mail-am4pr0401cu00106.inbound.protection.outlook.com
- 2a01:111:f403:ca09::3 ↩ mail-am6pr04cu00303.inbound.protection.outlook.com
- 2a01:111:f403:ca04::5 ↩ mail-db3pr0202cu00205.inbound.protection.outlook.com
SOA Record
Raw SOA
voltaire.dwelle.de arno.wagner.dw.de 2026032001 3600 1800 3024000 3600
Primary NS (mname)
voltaire.dwelle.de
Admin Email (rname)
arno@wagner.dw.de
Serial
2026032001
Refresh
3600s
Retry
1800s
Expire
3024000s
Minimum TTL
3600s
Nameservers (NS)
dns4.netcologne.de
dns5.netcologne.de
voltaire.dwelle.de
dns3.netcologne.de
SPF Record
✓ Strict (-all)
v=spf1 ip4:194.55.26.155 ip4:194.55.30.155 ip4:194.55.26.156 ip4:194.55.30.156 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1;p=reject;ruf=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 392 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
3 records- MS=ms74664472
- _i13o0b2a8mxwcl4kq73axgsbpqmze7x
- SPFv=spf1 ip4:194.55.26.155 ip4:194.55.30.155 ip4:194.55.26.156 ip4:194.55.30.156 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 dw.de
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits