title: Dynamic Receiver in Powermail (6.0.0) based on String
body: <p>TYPO3 8.7.x, Powermail 6.0.0</p>
  
  <p>I'd like to override the receiver based on two subjects they can select.</p>
  
  <p>Now I know that this works just fine:</p>
  
  <pre><code>[globalString = GP:tx_powermail_pi1|field|konsilbereich = 5]
  </code></pre>
  
  <p>But this does not seem to work:</p>
  
  <pre><code>[globalString = GP:tx_powermail_pi1|field|konsilbereich = "Some phrase"]
  </code></pre>
  
  <p>I read that some workarounds were to have a hidden field that's been filled by Javascript upon a users selection and instead of the actual field, the hidden field gets submitted. But that is not an option for us.</p>
  
  <p>I checked the docs as well as many support forums but could not find a good answer to this. </p>
  
  <p>Is this not possible, or if, how would I accomplish that I can use an actual string within the comparison?</p>