title: Adding + text before the @ in an email
body: <p>I know with gmail you can have people email you at your email with a +sometext appended to the end of your email and you will receive the email as if it were sent to your normal email. For example, if your email is:</p>
  
  <pre><code>joeshmo@gmail.com
  </code></pre>
  
  <p>I can email</p>
  
  <pre><code>joeshmo+hello@gmail.com
  </code></pre>
  
  <p>and joeshmo@gmail.com will receive the email.</p>
  
  <p>Is this a standard for email or only a feature of a few email clients? I'm writing a script that signs up users for an account on a website, and I want that script to work for users who already have an account on said website. My plan is to sign them up with </p>
  
  <pre><code>theiremail+mypersonaltag@theirdomain.com
  </code></pre>
  
  <p>Thanks for the help.</p>