Question

Regular expression for validating multiple email addresses

1

Hi, I need a correct regular expression for validation of multiple email addresses separated by a semicolon (;). Does anyone have a example of such a regular expression that works in Mendix? Thanks!

asked 2016-01-19

Theo Swart

2 answers

Arjan van IJzendoorn · Answer 1 · 2016-01-19

I have bad experiences with using advanced regular expressions to validate email addresses. I ended up only checking whether an address contains an @-sign and at least one character on either side. For your use case, that would look like this:

[^@;]+@[^@;]+(;[^@;]+@[^@;]+)*

Seray Yilmaz · Answer 2 · 2019-08-02

(?:[a-z0-9!#$%&'*+/=?^_`{|}~-]+(?:\.[a-z0-9!#$%&'*+/=?^_`{|}~-]+)*|"(?:[\x01-\x08\x0b\x0c\x0e-\x1f\x21\x23-\x5b\x5d-\x7f]|\\[\x01-\x09\x0b\x0c\x0e-\x7f])*")@(?:(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?\.)+[a-z0-9](?:[a-z0-9-]*[a-z0-9])?|\[(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?|[a-z0-9-]*[a-z0-9]:(?:[\x01-\x08\x0b\x0c\x0e-\x1f\x21-\x5a\x53-\x7f]|\\[\x01-\x09\x0b\x0c\x0e-\x7f])+)\])