<font size=2 face="sans-serif">For future releases, should be great to
implement a recipient list check in order to delete duplicated email addresses
and ensuring an unique recipient. Now the application let to send "n"
times the same mail to the same recipient. Malicious people could use this
hole for "block" users being possible to block the mail server
too if the IP address become a member of any global mailing blacklist.</font>