Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
studio-hamburg.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-21 18:36:01 UTC · ↺ Refresh
MX Hostnames
- mforward.dtag.de
- studiohamburg-de01e.mail.protection.outlook.com
MX Priorities
- mforward.dtag.de: 20
- studiohamburg-de01e.mail.protection.outlook.com: 10
A / AAAA Records
- 195.243.248.77 (no PTR)
Mail Server IPs
- 194.25.242.123 ↩ mforward.dtag.de
- 52.101.68.25 ↩ mail-db8pr02cu00101.inbound.protection.outlook.com
- 52.101.73.1 ↩ mail-am3pr04cu00501.inbound.protection.outlook.com
- 52.101.73.153 ↩ mail-as8pr05cu00401.inbound.protection.outlook.com
- 52.101.68.8 ↩ mail-du0pr03cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca09::5 ↩ mail-am1pr04cu00105.inbound.protection.outlook.com
- 2a01:111:f403:ca04:: ↩ mail-db3pr0202cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca04::5 ↩ mail-db3pr0202cu00205.inbound.protection.outlook.com
- 2a01:111:f403:ca04::e ↩ mail-db8pr02cu00106.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.telekom-domains.de dns.telekom.de 2026022401 10800 3600 2419200 43200
Primary NS (mname)
ns1.telekom-domains.de
Admin Email (rname)
dns@telekom.de
Serial
2026022401
Refresh
10800s
Retry
3600s
Expire
2419200s
Minimum TTL
43200s
Nameservers (NS)
ns1.telekom-domains.de
ns2.telekom-domains.de
SPF Record
✓ Strict (-all)
v=spf1 ip4:195.243.248.64/27 ip4:69.169.227.24 ip4:69.169.227.25 ip4:69.169.228.187 ip4:69.169.228.188 ip4:69.169.228.189 ip4:69.169.228.190 ip4:69.169.228.191 ip4:69.169.228.192 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1;p=none;rua=mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 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
4 records- MS=ms89109760
- bw=uhS3wLoPb0BSIBQbtZePRLJR09e0oboVI9NNGCYK1kTU
- _telesec-domain-validation=346488_2026-02-24_cfgtP4yZ45zCK8WrTkdtKKAJR94JvirWRX3TlZc13fLI4h0I4n
- SPFv=spf1 ip4:195.243.248.64/27 ip4:69.169.227.24 ip4:69.169.227.25 ip4:69.169.228.187 ip4:69.169.228.188 ip4:69.169.228.189 ip4:69.169.228.190 ip4:69.169.228.191 ip4:69.169.228.192 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 studio-hamburg.de
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits