`lettersystems.com.ar`

DNSSEC	⚠️ Not signed
A	173.224.122.230^{🇺🇸 AS30083173.224.122.0/24}
		PTR	`helium.manifestozone.com`
NS	`ns2.manifestodns.com` ⭐
		A	57.128.168.204^{🇫🇷 OVH57.128.128.0/18}
			PTR	`vps-d30fd0ca.vps.ovh.net`
NS	`ns1.manifestodns.com`
		A	92.204.40.216^{🇫🇷 VELIANET-AS92.204.40.0/24}
			PTR	`ns1.manifestodns.com`
NS	`ns1.manifestozone.com`
		A	173.224.125.181^{🇺🇸 AS30083173.224.125.0/24}
			PTR	`ns1.manifestozone.com`
NS	`ns2.manifestozone.com`
		A	51.222.86.84^{🇨🇦 OVH51.222.0.0/16 Hosting route}
			PTR	`ns2.manifestozone.com`
MX	`lettersystems.com.ar` ⭐
		A	173.224.122.230^{🇺🇸 AS30083173.224.122.0/24}
			PTR	`helium.manifestozone.com`
TXT	`v=spf1 +a +mx +ip4:66.45.237.122 +ip4:154.38.164.215 +ip4:148.72.159.8 +ip4:1...`
SOA	`ns2.manifestodns.com`dev@manifesto.com.ar 2026-04-12 #1

`com.ar`

	DNSSEC	⚠️ Not signed
	NS	`e.dns.ar` ⭐ ⚠️ Not in parent delegation
	NS	`a.lactld.org` ⚠️ Not in parent delegation
	NS	`c.dns.ar` ⚠️ Not in parent delegation
	NS	`d.dns.ar` ⚠️ Not in parent delegation
	NS	`f.dns.ar` ⚠️ Not in parent delegation
	TXT	`COM.AR zone generated atEpoch 1778655825localtime 2026-05-13T04:03:45-03:00GM...`
	SOA	`e.dns.ar`noc@nic.gob.ar 2026-05-13 #4

WOT: SAFE (50/100)

MX for

lettersystems.com.ar

Same first word

lettersystems.com.ar

DNS History

9 records (6 active, 3 former)

●NSns1.manifestodns.com2015-08-15 → 2026-05-13 · 2 obs

● 2015-08-15 01:23:16
● 2026-05-13 08:20:34

●NSns1.manifestozone.com2015-08-15 → 2026-05-13 · 2 obs

● 2015-08-15 01:23:16
● 2026-05-13 08:20:34

●NSns2.manifestodns.com2015-08-15 → 2026-05-13 · 2 obs

● 2015-08-15 01:23:16
● 2026-05-13 08:20:34

●NSns2.manifestozone.com2015-08-15 → 2026-05-13 · 2 obs

● 2015-08-15 01:23:16
● 2026-05-13 08:20:34

●MXlettersystems.com.ar2015-08-15 → 2026-05-13 · 2 obs

● 2015-08-15 01:23:16
● 2026-05-13 08:20:34

●A173.224.122.2302026-02-14 → 2026-05-13 · 3 obs

○ 2017-04-20 18:08:22
● 2026-02-14 23:37:58
● 2026-05-13 08:20:34

○A50.28.39.52016-03-01 → 2016-09-10 · 5 obs

○ 2015-12-01 03:23:56
● 2016-03-01 10:48:28
● 2016-09-10 15:35:58
○ 2017-04-20 18:08:22
○ 2026-05-13 08:20:34

○A67.225.175.1402017-04-20 → 2017-04-20 · 4 obs

○ 2016-09-10 15:35:58
● 2017-04-20 18:08:22
○ 2026-02-14 23:37:58
○ 2026-05-13 08:20:34

○A69.167.155.2532015-08-15 → 2015-12-01 · 4 obs

● 2015-08-15 01:23:16
● 2015-12-01 03:23:56
○ 2016-03-01 10:48:28
○ 2026-05-13 08:20:34

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
ar	e.dns.ar, f.dns.ar, d.dns.ar, c.dns.ar	-
lettersystems.com.ar	ns2.manifestodns.com, ns1.manifestodns.com, ns1.manifestozone.com, ns2.manifestozone.com	-

✅ Authoritative Response

Server:57.128.168.204

NS records: ns2.manifestodns.com, ns1.manifestodns.com, ns1.manifestozone.com, ns2.manifestozone.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for lettersystems.com.ar (unsigned zone)

⏱️ Timing

Total: 1161ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`173.224.122.230`
NS	4	`ns1.manifestodns.com, ns2.manifestodns.com...`
MX	1	`lettersystems.com.ar (pri: 0)`
TXT	1	`v=spf1 +a +mx +ip4:66.45.237.122 +ip4:15`
SOA	1	`ns2.manifestodns.com dev.manifesto.com.a`

Analysis

Mail Server Role

lettersystems.com.ar serves as the mail server for lettersystems.com.ar.

IP Addresses

lettersystems.com.ar points to a single IP address: 173.224.122.230.

Other host names such as cordobablanqueria.com, portahnos.com.ar, gridohelado.com.ar, helium.manifestozone.com and gridohelado.com share IP numbers with lettersystems.com.ar.

Name Servers

lettersystems.com.ar is delegated to four name servers: ns1.manifestodns.com, ns2.manifestodns.com, ns1.manifestozone.com and ns2.manifestozone.com.

At least part of the name servers for lettersystems.com.ar are shared with other domains, for instance manifestodns.com, malvasiopicat.com, fluorine.manifestozone.com, sashadavila.com and silver.manifestozone.com.

Host names with one IP: ns1.manifestodns.com points to 92.204.40.216; ns2.manifestodns.com points to 57.128.168.204; ns1.manifestozone.com points to 173.224.125.181; ns2.manifestozone.com points to 51.222.86.84.

Mail Servers

Mail for lettersystems.com.ar is handled by a single mail server, lettersystems.com.ar.

Host lettersystems.com.ar points to IP 173.224.122.230.

lettersystems.com.ar - robtex.com