`mx250.derofre.com`

DNSSEC	⚠️ Not signed
A	216.172.143.250^{🇺🇸 ENERGY-GROUP-NETWORKS216.172.128.0/19 SJC2 - Router 55 S. Market San Jose, CA}
		PTR	`mta-250.toovbais.com`
MX	`smtp.derofre.com` ⭐
		A	216.172.143.250^{🇺🇸 ENERGY-GROUP-NETWORKS216.172.128.0/19 SJC2 - Router 55 S. Market San Jose, CA}
			PTR	`mta-250.toovbais.com`
TXT	`v=spf1 ip4:216.172.143.250/32 ip4:216.172.143.251/32 ip4:216.172.143.252/32 -all`

`derofre.com`

	DNSSEC	⚠️ Not signed
	A	216.172.143.250^{🇺🇸 ENERGY-GROUP-NETWORKS216.172.128.0/19 SJC2 - Router 55 S. Market San Jose, CA}
	NS	`ns-324.awsdns-40.com` ⭐
	NS	`ns-1350.awsdns-40.org`
	NS	`ns-1965.awsdns-53.co.uk`
	NS	`ns-844.awsdns-41.net`
	MX	`smtp.derofre.com` ⭐
	TXT	`v=spf1 ip4:216.172.143.250/32 ip4:216.172.143.251/32 ip4:216.172.143.252/32 -all`
	SOA	`ns-324.awsdns-40.com`awsdns-hostmaster@amazon.com serial=1

Similar names

mx520.com

mx025.cn

520mx.net

520xm.com

xm205.com

250mx.com

DNS History

2 records (2 active, 0 former)

●MXsmtp.derofre.com2026-03-24 → 2026-04-24 · 2 obs

● 2026-03-24 21:38:54
● 2026-04-24 06:43:58

●A216.172.143.2502026-03-24 → 2026-04-24 · 2 obs

● 2026-03-24 21:38:54
● 2026-04-24 06:43:58

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	d.gtld-servers.net, i.gtld-servers.net, k.gtld-servers.net, b.gtld-servers.net...	-
derofre.com	ns-324.awsdns-40.com, ns-844.awsdns-41.net, ns-1350.awsdns-40.org, ns-1965.awsdns-53.co.uk	2 records

✅ Authoritative Response

Server:205.251.195.76

NS records: ns-324.awsdns-40.com, ns-844.awsdns-41.net, ns-1350.awsdns-40.org, ns-1965.awsdns-53.co.uk

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for derofre.com (unsigned zone)

⏱️ Timing

Total: 348ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`216.172.143.250`
MX	1	`smtp.derofre.com (pri: 20)`
TXT	1	`v=spf1 ip4:216.172.143.250/32 ip4:216.17`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns-324.awsdns-40.com, ns-324.awsdns-40.com)

Analysis

IP Addresses

mx250.derofre.com points to IP number: 216.172.143.250.

Other host names such as toovbais.com, mx251.derofre.com, smtp.derofre.com, esmartonline.com and smtp.toovbais.com share IPs with mx250.derofre.com.

Mail Servers

mx250.derofre.com is handled by a single mail server, smtp.derofre.com.

mx250.derofre.com shares the same mail server setup as other domains, for instance derofre.com, mx251.derofre.com and smtp.derofre.com.

smtp.derofre.com points to a single IP: 216.172.143.250.

mx250.derofre.com - robtex.com