I want to install Redmine on an air-gapped network. It has no connection to the internet or any other network. As it doesn't need an e-mail server, it doesn't have that either.
My question is, can Redmine work without e-mail functionality?
Technically I could install an e-mail server on the network but I have no permission for that and I don't want to either, as its only purpose would be Redmine and not e-mail functionality in itself.
From the User Guide I would initially conclude 'no' because I can't find it in either the requirements or optional components. However in the configuration it mentions e-mail.