`smtp.constructel.net`

DNSSEC	⚠️ Not signed
A	194.65.74.133^{🇵🇹 MEO-RESIDENCIAL194.65.0.0/16 MEO - SERVICOS DE COMUNICACOES E MULTIMEDIA S.A.}
		PTR	`smtp.visabeirahouse.com`
		PTR	`smtp.visacasa.pt`
		PTR	`smtp.mail.beontech.com`

`constructel.net`

	DNSSEC	⚠️ Not signed
	A	135.236.100.162^{🇺🇸 Microsoft135.236.0.0/15}
	NS	`grupovisa2.grupovisabeira.pt` ⭐ ⚠️ Not in parent delegation
	NS	`grupovisa.grupovisabeira.com` ⚠️ Not in zone NS records
	NS	`grupovisa.grupovisabeira.pt` ⚠️ Not in parent delegation
	NS	`grupovisa2.grupovisabeira.com` ⚠️ Not in zone NS records
	NS	`gvexternaldnsstage.grupovisabeira.pt` ⚠️ Not in parent delegation
	MX	`smtp.constructel.net` ⭐
	MX	`smtpdr.constructel.net`⁽⁵⁰⁾
	TXT	`v=spf1 mx:smtp.constructel.net mx:smtpdr.constructel.net ip4:194.65.74.129 ip...`
	SOA	`grupovisa.grupovisabeira.pt`hostmaster@grupovisabeira.pt serial=38

PTR for

131.74.65.194.in-addr.arpa

MX for

constructel.net

Same first word

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DNS History

3 records (1 active, 2 former)

○A194.65.74.1312016-05-04 → 2016-10-15 · 5 obs

○ 2016-02-12 12:13:52
● 2016-05-04 18:11:12
● 2016-10-15 11:36:50
○ 2026-02-16 14:45:58
○ 2026-03-26 06:22:10

○A194.65.74.1322015-07-17 → 2016-02-12 · 4 obs

● 2015-07-17 06:36:14
● 2016-02-12 12:13:52
○ 2016-05-04 18:11:12
○ 2026-03-26 06:22:10

●A194.65.74.1332026-02-16 → 2026-03-26 · 3 obs

○ 2016-10-15 11:36:50
● 2026-02-16 14:45:58
● 2026-03-26 06:22:10

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
net	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
constructel.net	grupovisa.grupovisabeira.com, grupovisa2.grupovisabeira.com	-

✅ Authoritative Response

Server:193.37.153.70

NS records: grupovisa.grupovisabeira.com, grupovisa2.grupovisabeira.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for constructel.net (unsigned zone)

⏱️ Timing

Total: 614ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`194.65.74.133`

Analysis

Mail Server Role

smtp.constructel.net serves as the mail server for constructel.net.

smtpdr.constructel.net often functions as the mail server, commonly paired with smtp.constructel.net.

IP Addresses

smtp.constructel.net points to a single IP address: 194.65.74.133.

Other host names such as smtp.pinewells.com, smtp.casaalegre.pt, smtp.thedayafter.pt, smtp.visabeiraimobiliaria.com and smtp.edivisa.pt share IP numbers with smtp.constructel.net.

smtp.constructel.net - robtex.com