Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
zewotherm.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-25 11:00:08 UTC · ↺ Refresh
MX Hostnames
- zewotherm-de.mail.protection.outlook.com
MX Priorities
- zewotherm-de.mail.protection.outlook.com: 10
A / AAAA Records
- 104.21.69.186 (no PTR)
- 172.67.212.47 (no PTR)
- 2606:4700:3030::ac43:d42f
- 2606:4700:3033::6815:45ba
Mail Server IPs
- 52.101.170.2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
- 52.101.170.0 ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
- 52.101.170.1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
- 52.101.168.0 ↩ mail-beup281cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca2d:: ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
- 2a01:111:f403:ca2d::1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
- 2a01:111:f403:ca27:: ↩ mail-beup281cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca2d::2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
SOA Record
Raw SOA
april.ns.cloudflare.com dns.cloudflare.com 2398937039 10000 2400 604800 1800
Primary NS (mname)
april.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2398937039
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
april.ns.cloudflare.com
otto.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:spf.sendinblue.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject;
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 3 found
selector1._domainkey
selector2._domainkey
mail._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
6 records- SPFv=spf1 include:spf.protection.outlook.com include:spf.sendinblue.com -all
- v=verifydomain MS=4095160
- Sendinblue-code:393a8cf930b53d92b1399ffb39f445f4
- apple-domain-verification=cCyNBSEslR35PI05
- google-site-verification=1YK83uXBtGQFTvr7qkOk9-zrXgVYSzTINBN_WbpIKnU
- sophos-domain-verification=8fb82f46ea46cc2a86880c9a7f6ea9cf876ff72a
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 zewotherm.de
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits