Live data — DNS records and disposable check were just fetched and saved.
Domain Overview
DNS: ⚡ live
Checker: ⚡ live
isg-akademie.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-09-04 18:29:49 UTC · ↺ Refresh
MX Hostnames
- isgakademie-de0i.mail.protection.outlook.com
MX Priorities
- isgakademie-de0i.mail.protection.outlook.com: 10
A / AAAA Records
- 46.38.241.119 ↩ lb.isgakademie.de
Mail Server IPs
- 52.101.185.13 ↩ mail-zrzp278cu00205.inbound.protection.outlook.com
- 52.101.187.1 ↩ mail-gvap278cu00301.inbound.protection.outlook.com
- 52.101.185.12 ↩ mail-zrap278cu00304.inbound.protection.outlook.com
- 52.101.185.14 ↩ mail-zr1p278cu00206.inbound.protection.outlook.com
- 2a01:111:f403:ca3c:: ↩ mail-zrap278cu00300.inbound.protection.outlook.com
- 2a01:111:f403:ca3c::1 ↩ mail-zrzp278cu00201.inbound.protection.outlook.com
- 2a01:111:f403:ca3c::2 ↩ mail-zr1p278cu00202.inbound.protection.outlook.com
- 2a01:111:f403:ca3e::1 ↩ mail-gvap278cu00301.inbound.protection.outlook.com
SOA Record
Raw SOA
cns1.alfahosting.info ks.kaistaerk.de 2026010701 28800 7200 604800 300
Primary NS (mname)
cns1.alfahosting.info
Admin Email (rname)
ks@kaistaerk.de
Serial
2026010701
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
cns1.alfahosting.info
cns3.alfahosting.info
cns2.alfahosting.info
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
✗ p=none
v=DMARC1; p=none; sp=none; rua=mailto:[email protected]!10m; ruf=mailto:[email protected]!10m; rf=afrf; pct=100; ri=86400
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]!10m
↳ Subdomain policy: none
DKIM Selectors
✓ 1 found
mail._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: mail
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
4 records- MS=ms34445213
- Sendinblue-code:4dc5139813e0342900d0117b199b5f0e
- SPFv=spf1 include:spf.protection.outlook.com include:spf.sendinblue.com -all
- google-site-verification=q-97zkFwMEriygabcocxxOKk7J2bPLZJTqSlGExy_1c
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