`mail.optislit.com`

CNAME	`mail.stackmail.com`
DNSSEC	⚠️ Not signed
A	185.151.28.68^{🇬🇧 TWENTYI185.151.28.0/24}
		PTR	`smtp.stackmail.com`
A	185.151.28.84^{🇬🇧 TWENTYI185.151.28.0/24}
A	185.151.28.85^{🇬🇧 TWENTYI185.151.28.0/24}

`optislit.com`

	DNSSEC	⚠️ Not signed
	A	2a07:7800::138^{🇬🇧 TWENTYI2a07:7800::/48}
	A	185.151.30.138^{🇬🇧 TWENTYI185.151.30.0/24}
	NS	`ns1.stackdns.com` ⭐
	NS	`ns2.stackdns.com`
	NS	`ns3.stackdns.com`
	NS	`ns4.stackdns.com`
	MX	`mx.stackmail.com` ⭐
	TXT	`v=spf1 include:spf.stackmail.com a mx -all`
	SOA	`ns1.stackdns.com`hostmaster@stackdns.com serial=1702398173

Previously MX for

optislit.com

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DNS History

2 records (1 active, 1 former)

○A79.170.40.742015-06-27 → 2016-07-06 · 4 obs

● 2015-06-27 23:32:50
● 2016-07-06 01:39:32
○ 2026-07-01 06:12:42
○ 2026-07-15 20:43:52

●CNAMEmail.stackmail.com2026-07-01 → 2026-07-15 · 2 obs

● 2026-07-01 06:12:42
● 2026-07-15 20:43:52

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	m.gtld-servers.net, g.gtld-servers.net, a.gtld-servers.net, h.gtld-servers.net...	-
optislit.com	ns1.stackdns.com, ns2.stackdns.com, ns3.stackdns.com, ns4.stackdns.com	4 records

✅ Authoritative Response

Server:35.197.225.59

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: 687ms | Queries: -

📄 Records

Type	Count	Sample Data
CNAME	1	`mail.stackmail.com`

📌 Glue Records Collected

Total: 4

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

Analysis

IP Addresses

The hostname mail.optislit.com resolves to three IP addresses: 185.151.28.68, 185.151.28.84 and 185.151.28.85.

Additional host names — mail.stackmail.com, 185-151-28-85.ptr4.stackcp.net, mail.nsm.xcloudnode.com and two others — share IP numbers with mail.optislit.com.

mail.optislit.com - robtex.com