[ 源代码： python-imaplib2 ]
软件包：python3-imaplib2（3.6-2）
Threaded Python IMAP4 client (Python 3)
Python IMAP4 rev1 mail protocol client class using threads for parallel operation, allowing full use of the IMAP4 concurrency features and to decouple a user of imaplib from i/o lags, except where explicitly allowed.