How to validate an email address

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Posted on by WebPortal

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Hello,

I'm sending emails from an app with:

OutlookdoOffice365.SendEmailV2( ...)

The email address is entered in a field, but when the email is fake (eg: 123), the button that triggers the code above returns an error message visible only to me, like:

Anotação 2020-05-21 151314.jpg

I'd like to have a method that returns this error message to the user, so she can fix the email address.

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Building Power Apps

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Community Power Pla... Microsoft Employee on at

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This formula will return false if the email is invalid or true if the email is valid.
Not(IsBlank(Match(YourInput,"^[a-zA-Z0-9_.+-]+@[a-zA-Z0-9-]+\.[a-zA-Z0-9-.]+$",MatchOptions.Complete).FullMatch))
Where YourInput is the email string you want to check.
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Community Power Pla... Microsoft Employee on at

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I should add, this just checks for the "anything@anything.anything" kind of format. It doesn't guarantee the email address is a valid inbox. To do that, you'll need to use an API such as NeverBounce or some sort of email validator.

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WebPortal 2,297 on at

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Ok, I understand it's just a regular expression.
I was looking for a method to fetch the error message (after the email is sent) and show it to the user.
In any case, your solution is helpful, thank you.

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Community Power Pla... Microsoft Employee on at

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We use a service called NeverBounce that returns if the email is valid, it should return a similar message.
You'll have to wire the API call through an HTTP request in Power Automate. If you go that route I can still help, but I suggest getting help from the Power Automate community.
https://powerusers.microsoft.com/t5/General-Power-Automate/bd-p/MPAForum
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SC-11091452-0 2 on at

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This formula doesn't appear to be valid.
Not(IsBlank(Match(YourInput,"^[a-zA-Z0-9_.+-]+@[a-zA-Z0-9-]+\.[a-zA-Z0-9-.]+$",MatchOptions.Complete).FullMatch))

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