I currently have a personal web design & hosting business going on and I’m using digital ocean as the vps with VestaCP as my control panel. By Default VestaCp comes with Roundcube as the email client. I had deployed the server with no issue at all and my droplet and configuration is able to serve websites with no issue. The only problem I’m having is that when I try to use roundcube to send emails it continues to fail. I am able to receive emails but when I attempt to send a email i get back an email that states “The message can not be delivered” and that “its being blocked by the email server” of yahoo, gmail, & etc. Can anyone help me with this issue?
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