Sending E-Mail fails when credentials are not a valid email address

[sciloqi]

I get the response "'placeholder' is not a valid email address" when the credentials are not an email address.

My kirby configuration looks like this:

email' => [
  'transport' => [
    'username' => 'placeholder',

Testing with a username like 'placeholder@domain.tld' works, but I need a simple username.

[tobimori]

You can use tobimori.dreamform.actions.email.from.email