Thanks Jsamuel! I need to work hard with emails, autoresponder to subscribers with own authentication, notification news posts, it is where to have much trouble with DKIM key because I can not set up, very difficult for me I’m buying it now. I need an efficient mail server postfix + as a way to authenticate those sending without having to pay what I have not to pay using expensive services for shipments of emails. My server only receive not send because’re not authentic, some of these solution I have authenticated my emails?
I’m using IPSConfig to unofficial installation script, which does not trust and want to stop using, with new passwords at all for new installation on another droplet with another control panel other than the super complex ISPCONFIG3, it is easy to use, install and set is that veeeryyy veeerryyyy takes time and attention. I want to drop it. What would be the situation to my email I write for my hotmail and gmail accounts and yahoo as a test, never come to me starting my mail server installed by ISPConfig, said that have yet to set up DKIM! what would replace this my own authentication via DKIM?