The distinction between this and POP is the fact IMAP takes advantage of a cloud server so emails can be authenticated and categorized by any product. Many email users prefer IMAP to POP due to ease and performance. Take note: Create a file underneath /etc/apt/resources.record.d, not the /and so https://azuresupport41740.thenerdsblog.com/32167205/getting-my-company-dns-server-install-to-work