mx1.1stmailer.com - robtex.com

mx1.1stmailer.com

DNSSEC⚠️ Not signed
A158.247.217.160🇰🇷 AS-VULTR158.247.192.0/18 The Constant Company, LLC 319 CLEMATIS ST Suite 900
PTRmx1.1stmailer.com

1stmailer.com

DNSSEC⚠️ Not signed
A2606:4700:3033::6815:14cf🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3034::ac43:c268🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.20.207Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.194.104🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSmargaret.ns.cloudflare.com ⭐
NSrommy.ns.cloudflare.com
MXmx1.1stmailer.com ⭐
MXmx2.1stmailer.com(20)
TXTv=spf1 include:spf.1stmailer.com ~all
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.20.207, 172.67.194.104
IPv6 hints2606:4700:3033::6815:14cf, 2606:4700:3034::ac43:c268
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=74, name=cloudflare-ech.com
SOAmargaret.ns.cloudflare.comdns@cloudflare.com serial=2409922552

PTR for

160.217.247.158.in-addr.arpa

MX for

1stmailer.com

Same first word

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Similar names

xm1.mobi
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xm1.me
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1mx.at
xm1.dnsalias.com
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1mx.com
xm1.xyz
m1x.ca
1xm.org
xm1.de
m1x.app
1xm.net
1xm.co
xm1.ru
1mx.ai

DNS History

1 record (1 active, 0 former)

A158.247.217.160
●A158.247.217.1602026-07-23 → 2026-07-24 · 2 obs
● 2026-07-23 20:44:04
● 2026-07-24 15:12:36

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
comc.gtld-servers.net, d.gtld-servers.net, b.gtld-servers.net, j.gtld-servers.net...-
1stmailer.commargaret.ns.cloudflare.com, rommy.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.194.107

NS records: margaret.ns.cloudflare.com, rommy.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for 1stmailer.com (unsigned zone)

⏱️ Timing

Total: 96ms | Queries: -

📄 Records

TypeCountSample Data
A1158.247.217.160

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (margaret.ns.cloudflare.com, margaret.ns.cloudflare.com, margaret.ns.cloudflare.com...)

Analysis

Mail Server Role

1stmailer.com uses mx1.1stmailer.com as a mail server.

mx2.1stmailer.com and mx1.1stmailer.com are commonly paired as mail servers.

IP Addresses

mx1.1stmailer.com resolves to one IP address: 158.247.217.160.

mx2.1stmailer.com is an example of another host name that shares IP numbers with mx1.1stmailer.com.