An existing single user (admin) auto responder script needs upgrading to a multi (unlimited) user script, where people can sign up for single user accounts and use auto responders for their own site. In addition to that a "spam" words catcher section needs to be added where the script checks the user's email message for words that can trigger spam filters. The lists of these words are available everywhere on the net. A capability of showing a link in the sent email (on the bottom of the email message or anywhere they choose) to trigger the sending of the next message in the sequence immediately, if the user does not want to wait for the next scheduled email, but wants to receive it immediately. You will be required to change the file names of the existing single user script as well. Please reference the keyword "VITA" in your bid, otherwise it will be ignored.
## Deliverables
1) Complete and fully-functional working program(s) in executable form as well as complete source code of all work done.
2) Deliverables must be in ready-to-run condition, as follows (depending on the nature of the deliverables):
a) For web sites or other server-side deliverables intended to only ever exist in one place in the Buyer's environment--Deliverables must be installed by the Seller in ready-to-run condition in the Buyer's environment.
b) For all others including desktop software or software the buyer intends to distribute: A software installation package that will install the software in ready-to-run condition on the platform(s) specified in this bid request.
3) All deliverables will be considered "work made for hire" under U.S. Copyright law. Buyer will receive exclusive and complete copyrights to all work purchased. (No GPL, GNU, 3rd party components, etc. unless all copyright ramifications are explained AND AGREED TO by the buyer on the site per the coder's Seller Legal Agreement).
## Platform
PHP