Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
tlr.nl
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-21 04:16:53 UTC · ↺ Refresh
MX Hostnames
- tlr-nl.a-v1.mx.microsoft
MX Priorities
- tlr-nl.a-v1.mx.microsoft: 0
A / AAAA Records
- 104.21.31.135 (no PTR)
- 172.67.176.142 (no PTR)
- 2606:4700:3035::ac43:b08e
- 2606:4700:3030::6815:1f87
Mail Server IPs
- 52.101.73.1 ↩ mail-am3pr04cu00501.inbound.protection.outlook.com
- 52.101.68.3 ↩ mail-db7pr03cu00403.inbound.protection.outlook.com
- 52.101.73.12 ↩ mail-am4pr0401cu00104.inbound.protection.outlook.com
- 52.101.68.21 ↩ mail-db4pr02cu00205.inbound.protection.outlook.com
- 2a01:111:f403:ca09::3 ↩ mail-am6pr04cu00303.inbound.protection.outlook.com
- 2a01:111:f403:ca09::6 ↩ mail-am4pr0401cu00106.inbound.protection.outlook.com
- 2a01:111:f403:ca04::f ↩ mail-db7pr03cu00507.inbound.protection.outlook.com
- 2a01:111:f403:ca09::8 ↩ mail-as2pr05cu00100.inbound.protection.outlook.com
SOA Record
Raw SOA
sima.ns.cloudflare.com dns.cloudflare.com 2398795137 10000 2400 604800 1800
Primary NS (mname)
sima.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2398795137
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
vern.ns.cloudflare.com
sima.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 include:servers.mcsv.net include:sendgrid.net include:spf.uk.exclaimer.net include:spf.protection.outlook.com -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; pct=100; ruf=mailto:[email protected]; rua=mailto:[email protected]; adkim=r; aspf=r; fo=1
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._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
1 record- SPFv=spf1 include:servers.mcsv.net include:sendgrid.net include:spf.uk.exclaimer.net include:spf.protection.outlook.com -all
Full email verification for tlr.nl
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