Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
rational.nl
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-26 18:16:06 UTC · ↺ Refresh
MX Hostnames
- rational-nl.mail.protection.outlook.com
MX Priorities
- rational-nl.mail.protection.outlook.com: 1
A / AAAA Records
- 31.7.3.187 ↩ server3.adwise.shockmedia.nl
- 2a03:9700:8000::d34f:ccaf:84f8:bc7c ↩ server3.adwise.shockmedia.nl
Mail Server IPs
- 52.101.68.36 ↩ mail-db5pr02cu00104.inbound.protection.outlook.com
- 52.101.68.39 ↩ mail-db7pr03cu00607.inbound.protection.outlook.com
- 52.101.73.28 ↩ mail-am7pr05cu00204.inbound.protection.outlook.com
- 52.101.68.8 ↩ mail-du0pr03cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca09::1 ↩ mail-as9pr07cu00301.inbound.protection.outlook.com
- 2a01:111:f403:ca04::5 ↩ mail-db3pr0202cu00205.inbound.protection.outlook.com
- 2a01:111:f403:ca04::10 ↩ mail-dbapr03cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca09::e ↩ mail-am7pr05cu00206.inbound.protection.outlook.com
SOA Record
Raw SOA
nsauth1.introweb.nl postmaster.introweb.nl 2022122202 28800 7200 604800 86400
Primary NS (mname)
nsauth1.introweb.nl
Admin Email (rname)
postmaster@introweb.nl
Serial
2022122202
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
86400s
Nameservers (NS)
nsauth3.introweb.net
nsauth2.introweb.nl
nsauth1.introweb.nl
SPF Record
✓ Soft Fail (~all)
v=spf1 ip4:178.170.148.171 ip4:62.221.212.185 ip4:136.243.177.71 ip4:104.40.229.156 ip4:141.138.168.126 include:spf.protection.outlook.com include:spf.exclaimer.net include:sites.savviihq.com include:_spf.createsend.com ~all
📊 DNS lookups: 4/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
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
2 records- SPFv=spf1 ip4:178.170.148.171 ip4:62.221.212.185 ip4:136.243.177.71 ip4:104.40.229.156 ip4:141.138.168.126 include:spf.protection.outlook.com include:spf.exclaimer.net include:sites.savviihq.com include:_spf.createsend.com ~all
- apple-domain-verification=cQwtepXVOBZznZUB
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