looking to install a mail server on a ubuntu server. I already have a web server running on it (apache/php/wordpress) But I am looking to also have a mail server. As I understand it I need to add MX records set up postfix for SMTP and dovecot for POP3 and IMAP.
My main question is, is it possible to install an email server on top of that?
Do I have to run the mail server with a second instance of apache or nginx?
Any tips for accomplishing this if at all possible?
Thank you