Email address with non-ASCII local part passes validation but fails with AWS error

I'm not an expert on whether this should be the case, but e.g.

då[email protected]

passes validation with RFCValidation() but is then rejected by the AWS SES API:

<Error>
    <Type>Sender</Type>
    <Code>InvalidPara (truncated...)
 InvalidParameterValue (client): Local address contains control or whitespace - <ErrorResponse xmlns="http://ses.amazonaws.com/doc/2010-12-01/">
  <Error>

This is with release 4.0.4 on a Laravel 12 framework vanilla email validation setup.

Maybe that address is not strictly wrong acc to the RFC (I don't know?), but the end result is a bit problematic. Any solutions?