SMTP ports are blocked and we recommend using a transactional mail service if your server needs to send mail.
We're implementing a number of things to profile abusers and prevent abuse on the platform and will be strictly enforcing policies against abuse. The lack of an API and prohibition on automating the creation of servers combined with required Github profile for ssh keys help to make the service unattractive for most abuse cases. Our goal is to use these methods to prevent abuse while keeping a very low barrier to entry for legitimate users.
We're implementing a number of things to profile abusers and prevent abuse on the platform and will be strictly enforcing policies against abuse. The lack of an API and prohibition on automating the creation of servers combined with required Github profile for ssh keys help to make the service unattractive for most abuse cases. Our goal is to use these methods to prevent abuse while keeping a very low barrier to entry for legitimate users.