title: How to create SPF record for multiple IPs?
body: <p>I do not find any guidelines regarding how to configure multiple IPs into an SPF record.
  So far I used (for example):</p>
  
  <pre><code>v=spf1 ip4:180.72.100.0/24 a mx ?all
  </code></pre>
  
  <p>But now I should add another range of IPs that are allowed, e.g.</p>
  
  <pre><code>v=spf1 ip4:180.72.100.0/24 ip4:180.20.111.0/24 a mx ?all
  </code></pre>
  
  <p>Is the second syntax correct?
  Thanks.</p>