CF1761025854632-tsm20251017082432

WWW.RTSAK.COM - esa01.firstclass.com

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esa01.firstclass.com checked at 2025-10-21T05:50:54.619Z 275ms 28/28/28 100% R:8

esa01.firstclass.com

A142.75.68.18🇨🇦 OPENTEXT-NA-CA-TORONTO-1

firstclass.com

MXesa01.firstclass.com
MXesa02.firstclass.com
NSproxy.firstclass.com
NSns.softarc.com
A142.75.67.212🇨🇦 OPENTEXT-NA-CA-TORONTO-1
rank #511053 globally
rank #268243 in the tld

MX for

Starts similarily

AI analysis

esa01.firstclass.com serves as a mail server for uitinc.com, softarc.com, edison.firstclass.com and firstclass.com.

esa02.firstclass.com often functions as the mail server, commonly paired with esa01.firstclass.com.

esa01.firstclass.com points to a single IP address: 142.75.68.18.

Perform reverse DNS lookup as well as normal forward DNS. Check Autonomous System Numbers (ASNs) and BGP connections between Internet Service Providers.
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JyxXKzA CF johedugfp 2025-10-21