Long links are shortened

Found the cause of the issue now.
Some email bodies where set as ['#type'] = 'processed_text', but had no ['#format'] assigned.
So the plain_text format was used by default which had the filter 'Convert URLs into Links' active with a 'Maximum Link text length' of 72 characters.

I fixed this now by creating a new EmailAdjuster and a text format for emails, which will be set if there was no format assigned for processed_text.

Like this:

/**
   * {@inheritdoc}
   */
  public function build(EmailInterface $email) {
    $enabled = $this->configuration['enabled'] ?? FALSE;

    if (!$enabled) {
      return;
    }

    $legacy_message = $email->getParam('legacy_message');

    if (isset($legacy_message)) {
      $bodies = $email->getBody();
      foreach ($bodies as &$body) {
        if (isset($body['#type']) && $body['#type'] === 'processed_text' && !isset($body['#format'])) {
          // Check if 'html_email' text format exists before using it.
          if ($this->textFormatExists('html_email')) {
            $body['#format'] = 'html_email';
          }
          else {
            // Fall back to a default format if 'html_email' doesn't exist.
            $body['#format'] = 'plain_text';
          }
        }
      }
      $email->setBody($bodies);
    }
  }

Thanks for reporting back😃

Automatically closed - issue fixed for 2 weeks with no activity.