Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
cimonline.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-29 23:24:55 UTC · ↺ Refresh
MX Hostnames
- cimonline-de.mail.protection.outlook.com
MX Priorities
- cimonline-de.mail.protection.outlook.com: 0
A / AAAA Records
- 193.97.171.28 ↩ 193.97.171.28.giz.de
Mail Server IPs
- 52.101.73.28 ↩ mail-am7pr05cu00204.inbound.protection.outlook.com
- 52.101.68.16 ↩ mail-db4pr02cu00400.inbound.protection.outlook.com
- 52.101.68.29 ↩ mail-dbapr03cu00105.inbound.protection.outlook.com
- 52.101.73.16 ↩ mail-as2pr05cu00100.inbound.protection.outlook.com
SOA Record
Raw SOA
resistor.gtz.de dns.gtz.de 2026032701 28800 7200 604800 86400
Primary NS (mname)
resistor.gtz.de
Admin Email (rname)
dns@gtz.de
Serial
2026032701
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
86400s
Nameservers (NS)
auth04.ns.de.uu.net
auth54.ns.de.uu.net
SPF Record
✓ Strict (-all)
v=spf1 mx ip4:193.97.170.0/24 include:spf.protection.outlook.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1;p=reject;sp=reject;rua=mailto:[email protected],mailto:[email protected];adkim=s;aspf=s;fo=1
✓ Reject — strongest protection
📋 SPF alignment: Strict
· DKIM alignment: Strict
📧 Reports → mailto:[email protected],mailto:[email protected]
↳ Subdomain policy: reject
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- oXKF6QuHQGFjmCB9lzI9wxbrCtBm7r5szus4u0raXtM15/5+bCMqwBIcTp7n8JIdEf5uOq16PlOu/b5wcnOmIw==
- MS=ms57883849
- google-site-verification=vWKejr4JGjRrB0Kqy-Q0up9IXRsYNuUrUTb6IdEO5vU
- SPFv=spf1 mx ip4:193.97.170.0/24 include:spf.protection.outlook.com -all
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