Quite often in forums after registration you get messages like: "Thank you for registraion, a link was sent to the e-mail you specified, which you must follow to activate your account."

The XRumer program works even with such forums.
To succesfully use this feature you must enter an e-mail, when creating your post, that the program will use when registering to forums. It is reccomended to create a new e-mail for this purpose because a lot of mail will be sent to this address. It is reccomended to use google.com or a similar e-mail provider.
At the end of going through the database of forums, the program will check the e-mail address you entered, analyse every e-mail message in it and gather those activation links. After that it follows them and posts your message to the forums.