Hi,
I found a very similar thread dated from last year on this issue, which was given a great response.
I am still not able to understand how to deal with customers who add random characters to their email address (Which gets accepted on the sign-up form as a new email) but gets directed to the recipients original email. (Gmail lets users do this).
Is there a way for me to avoid customers abusing this?
How do I prevent customers from abusing the sign-up form?
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Best answer by Akers Digital
Hey
I actually use that Gmail trick all the time. It’s a great tool to manage my personal inbox so I can better set up filters, managing logins, or add some extra security to login/passwords.
I don’t think the double opt-in would solve this. Someone would signup or your newsletter with the email name+1@gmail.com. They would then get the opt-in email sent to name@gmail.com and be able to confirm it.
There is no real way to fully prevent coupon code abuse. What eCommerce platform are you on? You might be able to set up some rules with the promo codes themselves like one use per customer. Or if you’re on Shopify Plus you can create some workflows that could handle it too.
We had a similar conversation with one of our clients. The question is, do we really care? Although we dont love giving out promo codes, most of our clients are happy to get two sales with a 10% discount code vs just a single sale.
Other option, use SMS for delivering promo codes. It’s a lot harder to create fake SMS numbers than it is to make fake emails. Isn’t perfect either since there are tons of apps out there that make “burner” phone numbers.
Thanks for the shout out
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