Regular Expression
^(?=[a-z][a-z0-9@._-]{5,40}$)[a-z0-9._-]{1,20}@(?:(?=[a-z0-9-]{1,15}\.)[a-z0-9]+(?:-[a-z0-9]+)*\.){1,2}[a-z]{2,6}$
By default, the app converts all the email value to lower case before validation.
Please use regex101.com: email to analyse and validate the regex.
The error message for an invalid format, (to be translatable in Ar is supported).
Please insert a valid email address.
Example