Extract email addresses from email messages via IMAPP

email_address_extractor.py

import imaplib, email

import getpass, imaplib, email, sets

def split_addrs(s):
    #split an address list into list of tuples of (name,address)
    if not(s): return []
    outQ = True
    cut = -1
    res = []
    for i in range(len(s)):
        if s[i]=='"': outQ = not(outQ)
        if outQ and s[i]==',':
            res.append(email.utils.parseaddr(s[cut+1:i]))
            cut=i
    res.append(email.utils.parseaddr(s[cut+1:i+1]))
    return res

def get_addresses( name, password, folder=None):
    if folder:
       folder = folder
    else:
       folder = "INBOX"
    mail=imaplib.IMAP4_SSL('imap.gmail.com')
    mail.login( name , password )
    print "In email account, accessing \"%s\" folder...\n" % (folder)
    mail.select(folder)
    result,data=mail.search(None,"ALL")
    ids=data[0].split()[-10:]
    print "Processing %d emails...\n" % ( len(ids) )
    msgs = mail.fetch(','.join(ids),'(BODY.PEEK[HEADER])')[1][0::2]
    addr=[]
    for x,msg in msgs:
        msgobj = email.message_from_string(msg)
        addr.extend(split_addrs(msgobj['to']))
        addr.extend(split_addrs(msgobj['from']))
        addr.extend(split_addrs(msgobj['cc']))
    
    mail.close()
    mail.logout()
    addr_set = set(addr)
    print "Fetched and writing %d unique name and emails to scraped_email.txt...\n" % ( len(addr_set) )
    f = open('scraped_emails.txt', 'w')
    for each in addr_set:
        name, address = each 
        #print "%s, %s" % (name, address)
        f.write("%s, %s\n" % (name, address))
    f.close()
    print "Done"


if __name__ == '__main__':

    email_address = raw_input('Enter your email: ')
    print "Username: %s" % ( email_address )
    get_addresses( email_address, getpass.getpass())

Be careful if you use MailApp on OSX and you use this script with an email account that you have not set up in MailApp. You may find that MailApp will not sync your messages.