Title: Additional headers
Last modified: January 10, 2017

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# Additional headers

 *  [Vic Drover](https://wordpress.org/support/users/vdrover/)
 * (@vdrover)
 * [9 years, 5 months ago](https://wordpress.org/support/topic/additional-headers-2/)
 * I am trying to minimize any spaminess in my emails by sending multi-part mime
   messages. Currently, I am using Formidable Forms to send an HTML mail, but there
   does not appear to be a way to include a plaintext version, and this is decreasing
   my emails spam assassin score by about 10%.
 * I noticed the “Additional Headers” field in Postman which I am using to send 
   site email via Sparkpost (smtp). I was wondering if I could use X-MC-Autotext
   to include a plaintext version of my site mail.
 * However, I could not find much documentation on using additional headers with
   Postman. For example, this mandrill article talks notes that X-MC-Autotext indicates
   that a flag is used: “true, on, yes, or y to turn on automatic text generation”.
   [https://mandrill.zendesk.com/hc/en-us/articles/205582117-How-to-Use-SMTP-Headers-to-Customize-Your-Messages#custom-header-reference](https://mandrill.zendesk.com/hc/en-us/articles/205582117-How-to-Use-SMTP-Headers-to-Customize-Your-Messages#custom-header-reference)
 * What is the syntax then to enable (for testing at least) the X-MC-Autotext header
   for all outgoing mail? “X-MC-Autotext”: true, perhaps?
 * Does Postman accept a comma-separate list of headers in this or a similar format?

The topic ‘Additional headers’ is closed to new replies.

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## Tags

 * [headers](https://wordpress.org/support/topic-tag/headers/)

 * 0 replies
 * 1 participant
 * Last reply from: [Vic Drover](https://wordpress.org/support/users/vdrover/)
 * Last activity: [9 years, 5 months ago](https://wordpress.org/support/topic/additional-headers-2/)
 * Status: not resolved