Setting the Message-ID of outgoing emails? | Community
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A
Anonymous
January 23, 2015
Question

Setting the Message-ID of outgoing emails?

  • January 23, 2015
  • 3 replies
  • 1533 views
Is it possible to set a custom message ID for outgoing emails based on data in my leads? 
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3 replies

Kristen_Malkov1
Kristen_Malkov1
Level 7
January 23, 2015
Can you explain a bit more about what you mean regarding a 'custom message ID'? What are you trying to accomplish?
A
Anonymous
January 24, 2015
Referring to controlling this header: http://en.wikipedia.org/wiki/Message-ID

On emails being sent from Marketo. 
SanfordWhiteman
SanfordWhiteman
Level 10
January 26, 2015
Can't imagine any way to do this.  Remember, we don't even have access to the MIME-wrapped form of the message, just the individual HTML and text parts. Customizing SMTP headers is a step beyond that.

Also, Message-IDs need to be globally unique.  What algorithm would you use to guarantee such uniqueness?

But more to the point, as @Kristen M asked, what are you trying to accomplish?  If you're trying to hide information from human readers that can be parsed by a machine, you can do this with an HTML comment.  
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