I need 2 things done to a custom newsletter script that I had someone do that I'm unable to reach now. What I need are:
- When someone enters their e-mail, if the address they enter does not have an "@" in it, I don't want it to be entered into the database, and have the page just return to the main page.
- I don't want people to be able to enter duplicate emails or if they press "submit" twice, I only want their email in the database.
I believe payment of $30 is sufficient for this.
25 freelancers are bidding on average $30 for this job
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