mail.4xtra.com - robtex.com

mail.4xtra.com

CNAMEmail.stackmail.com
DNSSEC⚠️ Not signed
A185.151.28.68🇬🇧 TWENTYI185.151.28.0/24
PTRsmtp.stackmail.com
A185.151.28.84🇬🇧 TWENTYI185.151.28.0/24
A185.151.28.85🇬🇧 TWENTYI185.151.28.0/24

4xtra.com

DNSSEC⚠️ Not signed
A2a07:7800::138🇬🇧 TWENTYI2a07:7800::/48
A185.151.30.138🇬🇧 TWENTYI185.151.30.0/24
NSns1.stackdns.com ⭐
NSns2.stackdns.com
NSns3.stackdns.com
NSns4.stackdns.com
MXmx.stackmail.com ⭐
TXTv=spf1 include:spf.stackmail.com a mx -all
SOAns1.stackdns.comhostmaster@stackdns.com serial=1756901523

Previously MX for

4xtra.com

Same first word

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DNS History

2 records (1 active, 1 former)

20162017201820192020202120222023202420252026A176.58.104.4CNAMEmail.stackmail.com
○A176.58.104.42015-06-15 → 2016-04-08 · 4 obs
● 2015-06-15 23:02:06
● 2016-04-08 11:31:20
○ 2026-02-19 03:56:28
○ 2026-04-19 00:09:42
●CNAMEmail.stackmail.com2026-02-19 → 2026-04-19 · 2 obs
● 2026-02-19 03:56:28
● 2026-04-19 00:09:42

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
comk.gtld-servers.net, l.gtld-servers.net, f.gtld-servers.net, d.gtld-servers.net...-
4xtra.comns1.stackdns.com, ns2.stackdns.com, ns3.stackdns.com, ns4.stackdns.com4 records

✅ Authoritative Response

Server:104.196.137.209

NS records: ns1.stackdns.com, ns2.stackdns.com, ns3.stackdns.com, ns4.stackdns.com

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 271ms | Queries: -

📄 Records

TypeCountSample Data
CNAME1mail.stackmail.com

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (ns1.stackdns.com, ns2.stackdns.com, ns3.stackdns.com...)

Analysis

IP Addresses

mail.4xtra.com points to three IPs: 185.151.28.68, 185.151.28.84 and 185.151.28.85.

other host names including mail.nsm.xcloudnode.com, smtp.stackmail.com, imap.stackmail.com, 185-151-28-84.ptr4.stackcp.net and mail.stackmail.com share IP numbers with mail.4xtra.com.