I received an email about Host installation I didn't initiate.
You have received an automated email message with access information for a certain remote Host, but you did not install or authorize installation of that particular Host.
This can happen, if someone runs the Host package that you created using the MSI Configurator and that package was configured to send you an email with Host access credentials upon installation.
By itself, this situation poses no threat to your computer or network because Host can only "give" access to a remote computer.
Currently, the only solution is to blacklist email messages from the current Host and build a new Host that uses a different email address.