Update sendemaillib.php
Update sendemaillib.php

Some fixes on [USERTRACK] placeholder HTML value.

[WEBSITE], [DOMAIN] and others placeholders seem to be not parsed. Had a quick fix.
samtuke/phplist3,bramley/phplist3,phpList/phplist3,byronjumbo/phplist3,tarekdj/phplist3,byronjumbo/phplist3,bramley/phplist3,samtuke/phplist3,mariez/phplist3,byronjumbo/phplist3,bramley/phplist3,mariez/phplist3,byronjumbo/phplist3,mariez/phplist3,samtuke/phplist3,danwaterloo/phplist3,tarekdj/phplist3,danwaterloo/phplist3,danwaterloo/phplist3,danwaterloo/phplist3,samtuke/phplist3,danwaterloo/phplist3,mariez/phplist3,phpList/phplist3,mariez/phplist3,phpList/phplist3,tarekdj/phplist3,bramley/phplist3,samtuke/phplist3,phpList/phplist3,tarekdj/phplist3,byronjumbo/phplist3,bramley/phplist3,tarekdj/phplist3,phpList/phplist3