parse mail logs and extract all base64 encoded attachments

parse_maillogs.py

#!/usr/bin/env python2

import sys
import os
import base64

file = sys.argv[1]
# os.mkdir('out')
with open(file,'rb') as f:
	lastblock = ''
	for block in f.read().split('\n\n'):
		if 'attachment; filename'  in lastblock:
			filename = lastblock.split('filename=')[1].split('"')[1]
			print(filename)
			with open('out/'+filename,'w') as outf:
				outf.write(base64.b64decode(block))
				print 'written to '  'out/'+filename
		lastblock = block