Script to check access of multiple email accounts against an IMAP host.

testimap.py

#!/usr/bin/env python

import sys
import imaplib

EMAIL_ACCOUNT_SUFFIX = "@mydomain.com"
EMAIL_HOST = "mail.myhost.com"

EMAIL_ACCOUNTS = {
        "name": "pass",
        }

for name, pw in EMAIL_ACCOUNTS.items():
    print("CONNECT")
    M = imaplib.IMAP4_SSL(EMAIL_HOST)
    try:
        account = name + EMAIL_ACCOUNT_SUFFIX
        print("LOGIN " + account)
        rv, data = M.login(account, pw)
    except imaplib.IMAP4.error:
        print ("LOGIN FAILED!!! ")
        continue
    print(rv, data)
    rv, mailboxes = M.list()
    if rv == 'OK':
        print("Mailboxes:")
        print(mailboxes)
    M.logout()