Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
ruderfinn.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-31 05:56:26 UTC · ↺ Refresh
MX Hostnames
- ruderfinn-com.mail.protection.outlook.com
MX Priorities
- ruderfinn-com.mail.protection.outlook.com: 0
A / AAAA Records
- 104.20.37.137 (no PTR)
- 172.66.170.66 (no PTR)
- 2606:4700:10::6814:2589
- 2606:4700:10::ac42:aa42
Mail Server IPs
- 52.101.41.28 ↩ mail-sj0pr03cu01504.inbound.protection.outlook.com
- 52.101.50.7 ↩ mail-co1pr21cu00207.inbound.protection.outlook.com
- 52.101.194.19 ↩ mail-ch5pr02cu00303.inbound.protection.outlook.com
- 52.101.8.34 ↩ mail-dm2pr04cu00102.inbound.protection.outlook.com
- 2a01:111:f403:c902::7 ↩ mail-sj0pr02cu00107.inbound.protection.outlook.com
- 2a01:111:f403:c902::14 ↩ mail-byapr04cu00204.inbound.protection.outlook.com
- 2a01:111:f403:c931:: ↩ mail-sn1pr02cu00100.inbound.protection.outlook.com
- 2a01:111:f403:f908::2 ↩ mail-bn8pr05cu00102.inbound.protection.outlook.com
SOA Record
Raw SOA
alla.ns.cloudflare.com dns.cloudflare.com 2399673143 10000 2400 604800 1800
Primary NS (mname)
alla.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399673143
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
jakub.ns.cloudflare.com
alla.ns.cloudflare.com
SPF Record
✓ Soft Fail (~all)
v=spf1 include:spf.protection.outlook.com include:servers.mcsv.net include:zcsend.net include:1841966.spf01.hubspotemail.net ~all
📊 DNS lookups: 4/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject;rua=mailto:[email protected],mailto:[email protected];
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected]
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
9 records- MS=ms84398523
- adobe-idp-site-verification=36463171f01d1a3ca352786324c011d6a457e5a0314fe7a0442300415f668763
- apple-domain-verification=JuRaP1UxS5QXwu5S
- google-site-verification=2XbEreZ_gwk20lMqRUTSVHuRdZWhpJSkKbTtsyKR3j4
- google-site-verification=Za_CHGUOg9bCcQPiqttujw4_I0RCn3ilH9OHcEfXEzM
- google-site-verification=qJ8pYo8iNW160ZfqwDpDFsMbrhwcKc373mrfK03Mlqc
- jamf-site-verification=YZt7sKfRuXqyx6vZpGai5w
- SPFv=spf1 include:spf.protection.outlook.com include:servers.mcsv.net include:zcsend.net include:1841966.spf01.hubspotemail.net ~all
- 1password-site-verification=5BAN4ORR7FFWLPLQCRB7VXI2DQ
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