title: Identify fields with RFC822 Internet mail text using Formula
body: <p>I have some documents who have a field called <code>From</code> and some of them have RFC822 Internet mail text. Its contents are displayed the document properties something like this:</p>
  
  <pre><code>Field Name: From
  Data Type: RFC822 Text
  Data Length: XX bytes
  Seq Num: 2
  Dup Item ID: 0
  
  Field Flags: SUMMARY NAMES 
  
  RFC822 Type: ADDRESS
  RFC822 Flags: STRICT 
  Native Value: 
  
  "ABC XYZ &lt;ABCXYZ@PQR.COM&gt;"
  
  RFC822 Header Name: 
  
  "From"
  
  RFC822 Header Delimiter: 
  
  ": "
  
  RFC822 Header Body: 
  
  4E 79 6A 52 19 ABC 
  6F 59 6F 60 32 XYZ
  ...
  ...
  </code></pre>
  
  <p>In LotusScript I was able to write the following piece of code to identify if the field has RFC822 Internet mail text.</p>
  
  <pre><code>Set item = doc.Getfirstitem("From")
  If item.Type = 1282 Then
      'Field has RFC822 Internet mail text
  End If
  </code></pre>
  
  <p>But how can I check this in Formula Language? I cannot find any equivalent Formula code that would check for RFC822 Internet mail text. I am trying to identify fields of type RFC822 TEXT with the field properties shown similar to above. I need this so that I can put it into view selection formula and see all the documents in a single view.</p>