Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
bk-siegburg.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-29 14:19:09 UTC · ↺ Refresh
MX Hostnames
- bksiegburg-de0e.mail.protection.outlook.com
- mail.bk-siegburg.de
MX Priorities
- mail.bk-siegburg.de: 20
- bksiegburg-de0e.mail.protection.outlook.com: 10
A / AAAA Records
- 93.184.63.105 ↩ a00462-1.host.tro.net
Mail Server IPs
- 92.50.64.251 ↩ ip-092-050-064-251.um29.pools.vodafone-ip.de
- 52.101.73.30 ↩ mail-am7pr05cu00306.inbound.protection.outlook.com
- 52.101.73.6 ↩ mail-am6pr04cu00306.inbound.protection.outlook.com
- 52.101.68.36 ↩ mail-db5pr02cu00104.inbound.protection.outlook.com
- 52.101.73.15 ↩ mail-am9pr04cu00107.inbound.protection.outlook.com
- 2a01:111:f403:ca04::6 ↩ mail-db4pr02cu00406.inbound.protection.outlook.com
- 2a01:111:f403:ca09::9 ↩ mail-as8pr04cu00801.inbound.protection.outlook.com
- 2a01:111:f403:ca09::b ↩ mail-am7pr05cu00103.inbound.protection.outlook.com
- 2a01:111:f403:ca04::2 ↩ mail-du2pr03cu00102.inbound.protection.outlook.com
SOA Record
Raw SOA
ns-a.tro.net hostmaster.tro.net 2025052300 43200 7200 1209600 86400
Primary NS (mname)
ns-a.tro.net
Admin Email (rname)
hostmaster@tro.net
Serial
2025052300
Refresh
43200s
Retry
7200s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns-b.tro.net
ns-c.tro.net
ns-d.tro.net
ns-a.tro.net
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✗ None detectedNo DKIM records found for common selectors — your provider may use a custom selector name.
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
3 records- duo_sso_verification=MKrNWqHXyqE43dYoMFvNp4afvvqPTOBVa7Uw5WlJnRzqWmz5J6wsMFA0VudA1tXC
- MS=ms38983090
- SPFv=spf1 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 bk-siegburg.de
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits