CritSend careers

CritSend: CritSend is a popular SMTP relay used by large and small companies to send transactions, invoices, newsletters, passwords and more.

Inboxbooster: Inboxbooster solves accidental spam folder placement once and for all. It lets users test their inbox placement with all major email providers. If required, it highlights exactly what needs to be changed in an email, to the word level, to avoid hitting spam folders. Inboxbooster uses a patent-pending technology developed by our R&D team.