mail.cityopensource.com - robtex.com

mail.cityopensource.com

DNSSEC⚠️ Not signed
A46.252.157.156🇮🇹 ASSUPERNOVA46.252.144.0/20 Netsons Network
PTRhostingssd105-156.netsons.net
TXTv=spf1 +ip4:46.252.157.156 +ip4:89.40.173.98 +include:_spf.google.com ~all

cityopensource.com

DNSSEC⚠️ Not signed
A46.252.157.156🇮🇹 ASSUPERNOVA46.252.144.0/20 Netsons Network
NSns-uk.topdns.com ⭐
NSns-canada.topdns.com
NSns-usa.topdns.com
MXmail.cityopensource.com ⭐
TXTgoogle-site-verification=E7ua8Cf5DPShY2onSBCjaO5waXQHE51fUQVE4l1mqzg
TXTv=spf1 +ip4:46.252.157.156 +ip4:89.40.173.98 +include:_spf.google.com ~all
SOAns-uk.topdns.comhostmaster@topdns.com 2026-01-26 #1

MX for

cityopensource.com

Same first word

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DNS History

1 record (1 active, 0 former)

A46.252.157.156
●A46.252.157.1562026-03-20 → 2026-03-31 · 2 obs
● 2026-03-20 19:32:22
● 2026-03-31 01:48:34

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coml.gtld-servers.net, k.gtld-servers.net, g.gtld-servers.net, b.gtld-servers.net...-
cityopensource.comns-canada.topdns.com, ns-usa.topdns.com, ns-uk.topdns.com4 records

✅ Authoritative Response

Server:77.247.183.137

NS records: ns-canada.topdns.com, ns-usa.topdns.com, ns-uk.topdns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for cityopensource.com (unsigned zone)

⏱️ Timing

Total: 254ms | Queries: -

📄 Records

TypeCountSample Data
A146.252.157.156
TXT1v=spf1 +ip4:46.252.157.156 +ip4:89.40.17

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (ns-canada.topdns.com, ns-usa.topdns.com, ns-usa.topdns.com...)

Analysis

Mail Server Role

mail.cityopensource.com serves as the mail server for cityopensource.com.

IP Addresses

mail.cityopensource.com resolves to a single IP: 46.252.157.156.

Other host names, for instance letrec.net, cityopensource.com, imap.ireplace.it, hostingssd105-156.netsons.net and effettidigitali.it share IP numbers with mail.cityopensource.com.