Address in mailbox given [] does not comply with RFC 2822, 3.6.2. when email is in a variable

Question

I have a correct email address. I have echoed it, but when I send it, I get the following error:

 Address in mailbox given [] does not comply with RFC 2822,          


        

Answer 1

Make sure your email address variable is not blank. Check using

print_r($variable_passed);