import re

# Mailboxes to check often
main = re.compile('^(INBOX.*|Sent.*|Drafts.*|Templates)$')

# Mailboxes to never check
noise = re.compile('^(Junk.*|Spam|spam|Trash|Deleted.*)$')

def common( foldername ):
	return (main.search(foldername) and not noise.search(foldername))

def uncommon( foldername ):
	return (not main.search(foldername) and not noise.search(foldername))

def most( foldername ):
	return (not noise.search(foldername))