Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
pfeiffersche-stiftungen.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-24 18:18:37 UTC · ↺ Refresh
MX Hostnames
- pfeifferschestiftungen-de03b.mail.protection.outlook.com
MX Priorities
- pfeifferschestiftungen-de03b.mail.protection.outlook.com: 10
A / AAAA Records
- 93.93.202.80 ↩ plesk-ps.kpln.de
- 2a11:6c80::50 ↩ plesk-ps.kpln.de
Mail Server IPs
- 52.101.68.18 ↩ mail-db4pr02cu00302.inbound.protection.outlook.com
- 52.101.68.21 ↩ mail-db4pr02cu00205.inbound.protection.outlook.com
- 52.101.68.27 ↩ mail-db7pr03cu00503.inbound.protection.outlook.com
- 52.101.73.24 ↩ mail-as8pr05cu00300.inbound.protection.outlook.com
- 2a01:111:f403:ca09::4 ↩ mail-am0pr04cu00504.inbound.protection.outlook.com
- 2a01:111:f403:ca09::5 ↩ mail-am1pr04cu00105.inbound.protection.outlook.com
- 2a01:111:f403:ca09::6 ↩ mail-am4pr0401cu00106.inbound.protection.outlook.com
- 2a01:111:f403:ca09::1 ↩ mail-as9pr07cu00301.inbound.protection.outlook.com
SOA Record
Raw SOA
ns0.nl hostmaster.ns0.nl 2025120901 86400 1800 2419200 300
Primary NS (mname)
ns0.nl
Admin Email (rname)
hostmaster@ns0.nl
Serial
2025120901
Refresh
86400s
Retry
1800s
Expire
2419200s
Minimum TTL
300s
Nameservers (NS)
ns5.be
ns11.net
ns0.nl
SPF Record
✓ Soft Fail (~all)
v=spf1 include:spf.protection.outlook.com include:plesk-ps.kpln.de include:_spf.sendnode.com ~all
📊 DNS lookups: 3/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
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
2 records- apple-domain-verification=NXSLx85QemHVFUBE
- SPFv=spf1 include:spf.protection.outlook.com include:plesk-ps.kpln.de include:_spf.sendnode.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 · Customize →
See demo & docs
Deep verification
Full email verification for pfeiffersche-stiftungen.de
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits