1) Support the collection of mailing lists and at the same time automatically verify the validity of the mailbox and send mail
2) you can only collect, do not verify, do not send and then export collected mailing list.
3) You can also only collect, verify, do not send and then export verified mailing list.
4) The same serial number can open multiple software instances on the same computer.
5) Advanced software architecture, integrated high-speed operation.