Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
heidelberger-beton.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-22 08:02:16 UTC · ↺ Refresh
MX Hostnames
- heidelbergerbeton-de03b.mail.protection.outlook.com
MX Priorities
- heidelbergerbeton-de03b.mail.protection.outlook.com: 10
A / AAAA Records
- 13.107.246.40 (no PTR)
- 13.107.213.40 (no PTR)
- 2620:1ec:bdf::40
- 2620:1ec:46::40
Mail Server IPs
- 52.101.73.30 ↩ mail-am7pr05cu00306.inbound.protection.outlook.com
- 52.101.73.153 ↩ mail-as8pr05cu00401.inbound.protection.outlook.com
- 52.101.68.10 ↩ mail-dbbpr03cu00102.inbound.protection.outlook.com
- 52.101.73.1 ↩ mail-am3pr04cu00501.inbound.protection.outlook.com
- 2a01:111:f403:ca04::1 ↩ mail-db7pr03cu00401.inbound.protection.outlook.com
- 2a01:111:f403:ca04::c ↩ mail-db9pr02cu00204.inbound.protection.outlook.com
- 2a01:111:f403:ca09::20 ↩ mail-as8pr05cu00400.inbound.protection.outlook.com
- 2a01:111:f403:ca09::8 ↩ mail-as2pr05cu00100.inbound.protection.outlook.com
SOA Record
Raw SOA
udns1.cscdns.net hostmaster.cscdns.net 2018081947 86400 1800 3600000 21600
Primary NS (mname)
udns1.cscdns.net
Admin Email (rname)
hostmaster@cscdns.net
Serial
2018081947
Refresh
86400s
Retry
1800s
Expire
3600000s
Minimum TTL
21600s
Nameservers (NS)
udns2.cscdns.uk
udns1.cscdns.net
SPF Record
✓ Strict (-all)
v=spf1 mx a include:spf.heidelbergmaterials.com ip4:62.134.201.74 ip4:199.87.118.202 include:spf.protection.outlook.com -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; pct=100; fo=1; ri=3600; rua=mailto:[email protected]; ruf=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._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
9 records- ejbSFpGEaIwUl4EQdW6GXLC1VLTFXIKBnRwy0MBVZIjrV7R0apmmw3GtLcsu2FRYJfLURKooCPMTEC6OY0MA1g==
- SPFv=spf1 mx a include:spf.heidelbergmaterials.com ip4:62.134.201.74 ip4:199.87.118.202 include:spf.protection.outlook.com -all
- MS=ms25689390
- 5njbbjkbwtg99xccpgjl4mzh8yrznqcj
- docusign=3920d230-b297-4521-842f-2f1baad11c6f
- docusign=ac36f525-2faa-4f25-96c3-69354f7bb2cc
- knowbe4-site-verification=7cdec06dc2a97ced73e58767aca8d117
- miro-verification=b63d515b7bf125a86a6ddc89cb4cdd1356dd4d8b
- TAWsyPXPsmXyYdj39h8+IBmoBAVtVmDnBGY8Y4iiu0SM0Xed9bDj3oUhLgRwCZX7yqgeKSWllTb6rtqdZ+7YiQ==
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 heidelberger-beton.de
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits