MachFive
Last Updated: September 26, 2026
MachFive does not allow its domains to be promoted through spam. Those domains are machfive.co, mail.machfive.co, and machfive.io. This policy explains the rule, who it applies to, and how to report a violation.
This policy applies to everyone connected to MachFive, including:
No one may advertise, promote, link to, or mention machfive.co, mail.machfive.co, or machfive.io, or any of their subdomains (such as app.machfive.co), in unsolicited email or other unsolicited messages. This includes:
An unsolicited message is one sent to someone who did not ask to receive it and does not have an existing relationship with the sender.
Account notifications are sent only from mail.machfive.co, and only to registered users.
Customers are responsible for the email they send using MachFive. Customers must:
Violations may lead to account suspension or termination, removal from partner or referral programs, and, for employees and contractors, termination of their role with MachFive.
If you receive an unsolicited message that mentions or links to machfive.co, mail.machfive.co, or machfive.io, forward it to support@machfive.io with the full message headers. We review every report.
This policy is part of our Terms of Service.