As you can see here, WordPress will use WordPress
as sender name and wordpress@<SITENAME>
as sender email, if these params were note passed to wp_mail
.
You can use wp_mail_from
and wp_mail_from_name
filters to modify these values though.
So if you want to change the sender e-mail address, just use this code:
add_filter( 'wp_mail_from', function( $email ) {
return '[email protected]';
});
PS. But [email protected]
is not a default email address that should be used, so maybe one of your plugins/theme is already changing that.