Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
swl-unser-stadtwerk.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-28 02:03:13 UTC · ↺ Refresh
MX Hostnames
- swlunserstadtwerk-de0i1c.mail.protection.outlook.com
MX Priorities
- swlunserstadtwerk-de0i1c.mail.protection.outlook.com: 50
A / AAAA Records
- 188.40.26.211 ↩ dedi6003.your-server.de
- 2a01:4f8:d0a:135c::2 ↩ dedi6003.your-server.de
Mail Server IPs
- 52.101.170.0 ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
- 52.101.168.0 ↩ mail-beup281cu00100.inbound.protection.outlook.com
- 52.101.170.1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
- 52.101.170.2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
- 2a01:111:f403:ca2d::1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
- 2a01:111:f403:ca2d:: ↩ mail-fr5p281cu00500.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
hydrogen.ns.hetzner.com dns.hetzner.com 2026030305 86400 10800 3600000 3600
Primary NS (mname)
hydrogen.ns.hetzner.com
Admin Email (rname)
dns@hetzner.com
Serial
2026030305
Refresh
86400s
Retry
10800s
Expire
3600000s
Minimum TTL
3600s
Nameservers (NS)
helium.ns.hetzner.de
hydrogen.ns.hetzner.com
oxygen.ns.hetzner.com
SPF Record
✓ Soft Fail (~all)
v=spf1 include:spf.mailjet.com mx:sw-gmhuette.de ip4:185.42.252.37 include:spf.protection.outlook.com include:spf.items-web.de include:agenturserver.de include:webmetering.de a:maxime-media.de ip4:85.13.153.118 ~all
📊 DNS lookups: 7/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none;
⚠ 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: 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
4 records- cisco-ci-domain-verification=75fbaed208679fbbc5e73a32ae055c0b873043e9ceaa9ca273a61fc06f74d524
- SPFv=spf1 include:spf.mailjet.com mx:sw-gmhuette.de ip4:185.42.252.37 include:spf.protection.outlook.com include:spf.items-web.de include:agenturserver.de include:webmetering.de a:maxime-media.de ip4:85.13.153.118 ~all
- MS=743CFEA30963558FE826B4C13409ECB3D555AC5E
- MS=ms90039872
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 swl-unser-stadtwerk.de
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits