This functionality is added to the core Drupal Contact module.
Installation
Unpack in your modules folder (usually /sites/all/modules/) and enable under Administer > Site Building > Modules.
Requirements:
· Drupal 5.x/6.x
Top 4 Download periodically updates information of Contact attach script from the developer, but some information may be slightly out-of-date.
Our script download links are directly from our mirrors or publisher's website. Contact attach torrent files or shared files from free file sharing and free upload services, including Rapidshare, MegaUpload, YouSendIt, MailBigFile, DropSend, HellShare, HotFile, FileServe, MediaMax, zUpload, MyOtherDrive, SendSpace, DepositFiles, Letitbit, LeapFile, DivShare or MediaFire, are not allowed!