MailChannels is a Canadian technology company that specializes in email security for businesses and internet service providers (ISPs).
Founded in 2004 by Ken Simpson and headquartered in Vancouver, British Columbia, the company operates in email security and the infrastructure market.
The business provides a products and services designed to safeguard email systems against spam, phishing, and other harmful content.
They guarantee the dependable delivery of legitimate messages and offer a mail relay API for numerous websites[citation needed].
In August 2023, security researcher Marcello Salvati presented findings at DEF CON 31 regarding what he termed a potential vulnerability in MailChannels' email infrastructure.