Is there a way to befriend an alt?

[Niwashi]

I really wish SE would fix this. If they want some association between characters before we can send mail, there should be a combination of ways to qualify: alts on our own account, people on our friends list, people in the same FC, etc. After all, they're charging us extra every month for the right to have multiple characters on the server. Not being able to directly share items between them feels like being denied what we're paying for.