`mail.rfbtraining.com`

`rfbtraining.com`

	DNSSEC	⚠️ Not signed
	A	185.37.70.41^{🇳🇱 CLDIN-NL185.37.68.0/22}
	NS	`ns3.firstfind.nl` ⭐
	NS	`ns4.firstfind.nl`
	NS	`ns5.firstfind.net`
	MX	`primary.yourfilter.nl` ⭐
	MX	`fallback.yourfilter.nl`⁽²⁰⁾
	TXT	`v=spf1 a mx include:_spf.yourfilter.nl -all`
	SOA	`ns3.firstfind.nl`hostmaster@firstfind@nl 2020-09-25 #1

Previously MX for

rfbtraining.com

Same first word

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🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
rfbtraining.com	ns4.firstfind.nl, ns3.firstfind.nl, ns5.firstfind.net	-

✅ Authoritative Response

Server:178.128.248.2

NS records: ns4.firstfind.nl, ns3.firstfind.nl, ns5.firstfind.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for rfbtraining.com (unsigned zone)

⏱️ Timing

Total: 545ms | Queries: -

📄 Records

Type	Count	Sample Data
CNAME	1	`server58.firstfind.nl`

mail.rfbtraining.com - robtex.com