Package auth handles the web UI and SMTP authentication.

Package dump is used to export all messages from mailpit into a directory.

Package html2text is a simple library to convert HTML to plain text.

Package htmlcheck is used for parsing HTML and returning HTML compatibility errors and warnings.

Package linkcheck handles message links checking.

Package logger handles the logging.

Package pop3 is a simple POP3 server for Mailpit.

Package pop3client is borrowed directly from https://github.com/knadh/go-pop3 to reduce dependencies.

Package smtpd implements a basic SMTP server.

Package spamassassin will return results from either a SpamAssassin server or Postmark's public API depending on configuration.

Package stats stores and returns Mailpit statistics.

Package storage handles all database actions.

Package tools provides various methods for various things.

package Updater checks and downloads new versions.