Regex to validate email address to pass Amazon validation

Question

I have looked through questions asked in Stack Overflow to answer my question, but haven’t come up with a solution. I am needing to validate email addresses with the Amazon email service validation in mind. Here are the rules I am trying to follow:

Dash cannot be preceded or followed by a period. Example: .- or -.
Dash cannot be at the beginning of the domain. Example: grant.fox@-abcfinancial.com
Dash cannot be at the end of the domain. Example: grant.hill@abc.com-

So far this is what I have come up with:

/^[a-z0-9!#$%&'*+=?^_`{|}~-]+(?:.[a-z0-9!#$%&'*+=?^_`{|}~-]+)*@(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9]))+[a-z0-9](?:[a-z0-9-]*[a-z0-9])?\.[A-Z]{2,6}$/

So what about `^[^@]+@[^\W_](?:[\w-]+[^\W_])?(?:\.[^\W_](?:[\w-]+[^\W_])?)+$`? — ctwheels, Mar 27 '18 at 13:37
@BrianGray wasn't clear that the `.-` or `-.` combinations were in the name part of the email. One sec — ctwheels, Mar 27 '18 at 13:46
This `^(?!.*(?:\.-|-\.))[^@]+@[^\W_](?:[\w-]+[^\W_])?(?:\.[^\W_](?:[\w-]+[^\W_])?)+$`? — ctwheels, Mar 27 '18 at 13:48
Sorry for all the questions and I really appreciate your help, would you happen to know why this email would not be working? test.test@te.st-test.de — BrianGray, Mar 27 '18 at 14:07
`^(?!.*(?:\.-|-\.))[^@]+@[^\W_](?:[\w-]*[^\W_])?(?:\.[^\W_](?:[\w-]*[^\W_])?)+$` my bad @BrianGray — ctwheels, Mar 27 '18 at 14:52
Does this answer your question? [How can I validate an email address using a regular expression?](https://stackoverflow.com/questions/201323/how-can-i-validate-an-email-address-using-a-regular-expression) — Ken White, Feb 20 '23 at 01:11

score 0 · Answer 1 · answered Mar 27 '18 at 20:21

0

Thanks to ctwheels we have an answer

^(?!.*(?:\.-|-\.))[^@]+@[^\W_](?:[\w-]*[^\W_])?(?:\.[^\W_](?:[\w-]*[^\W_])?)+$

answered Mar 27 '18 at 20:21

BrianGray

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Regex to validate email address to pass Amazon validation

1 Answers1