Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
rct-power.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-18 12:02:10 UTC · ↺ Refresh
MX Hostnames
- rctpower-com0i.mail.protection.outlook.com
MX Priorities
- rctpower-com0i.mail.protection.outlook.com: 0
A / AAAA Records
- 188.245.48.21 ↩ www.rct-power.com
Mail Server IPs
- 52.101.170.0 ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
- 52.101.170.1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
- 52.101.168.0 ↩ mail-beup281cu00100.inbound.protection.outlook.com
- 52.101.170.2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
- 2a01:111:f403:ca2d:: ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
- 2a01:111:f403:ca2d::1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
- 2a01:111:f403:ca2d::2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
- 2a01:111:f403:ca27:: ↩ mail-beup281cu00100.inbound.protection.outlook.com
SOA Record
Raw SOA
dns1.diespezialisten.de hostmaster.rct-power.com 2026030904 10800 3600 604800 3600
Primary NS (mname)
dns1.diespezialisten.de
Admin Email (rname)
hostmaster@rct-power.com
Serial
2026030904
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
dns1.diespezialisten.de
dns2.diespezialisten.de
SPF Record
✓ Strict (-all)
v=spf1 include:spf.diespezialisten.de include:spf.protection.outlook.com include:spf.crsend.com include:spf.trend-service.de include:_spf.salesforce.com ip4:31.47.84.32 ip4:185.80.168.51 ip4:188.245.48.21 ip4:46.224.107.221 -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject;
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 5 found
selector1._domainkey
selector2._domainkey
mail._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
3 records- google-site-verification=m02aXMAuSfLVAK3Km0LhiDhQ7gzrMmu9f4O3MAgaQ60
- SPFv=spf1 include:spf.diespezialisten.de include:spf.protection.outlook.com include:spf.crsend.com include:spf.trend-service.de include:_spf.salesforce.com ip4:31.47.84.32 ip4:185.80.168.51 ip4:188.245.48.21 ip4:46.224.107.221 -all
- apple-domain-verification=VQzw7tc3SUHlWxT8
Full email verification for rct-power.com
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