I'm trying to work out why I want to containerize webmail. Current thoughts:

• All the cool kids are doing it. Irritatingly possible
• Easier to keep config version controlled
• Easier to wipe and reinstall the server

Components (things to containerize):

• Postfix (SMTP)
• Dovecot (IMAP)
• Spamd
• Spampdq
• OpenDKIM
• Webmail