Description

Recipient email addresses that contain numbers or capital letters can be skipped during dispatch with the following notification:

Message 'MESSAGE_NAME': Recipient is skipped. 'EMAIL' is not a valid email address.

This issue affects EXM 3.4.0.

Solution

To fix the problem, update the EmailValidation setting in the \App_Config\Include\EmailExperience\Sitecore.EmailExperience.Core.config file with the following value:

<setting name="EmailValidation" value="[\p{L}0-9\+\-_\!\$\%\&amp;\*\?]+(?:\.[\p{L}0-9\+\-_\'\!\$\%\&amp;\*\?]+)*@(([\p{L}0-9\-]+(?:\.[\p{L}0-9]+)+)|(\[\d{1,3}(\.\d{1,3}){3}\]))$" />