I followed the following tutorial.
I was originally able to log into my account with Outlook...
I followed this tutorial (http://https://www.digitalocean.com/community/tutorials/how-to-configure-a-mail-server-using-postfix-dovecot-mysql-and-spamassassin) to install Postfix to prepare myself to be able to once ag...
@tylerdd91d55f77 - Now that your config settings work, you need to set up your SPF, DKIM, and DMARC records for gmail to not mark your mail as spam. Look in the bottom of this page with the "Related Questions" section...