Embedding Images in Outlook Messages With Ruby

embedded_images.rb

require 'win32ole'
email = "[email protected]"
image1 = "/home/user/images/image1.jpg"
image2 = "/home/user/images/image2.jpg"

outlook = WIN32OLE.new('Outlook.Application')
message = outlook.CreateItem(0)
message.To = email
message.Subject = "My Subject"
message.attachments.add(image1)
message.attachments.add(image2)

1.upto(message.attachments.count) do |index|
  message.attachments(index).PropertyAccessor.SetProperty("http://schemas.microsoft.com/mapi/proptag/0x370E001E",  "image/jpeg")
  message.attachments(index).PropertyAccessor.SetProperty("http://schemas.microsoft.com/mapi/proptag/0x3712001E",  message.attachments(index).filename)
end
message.PropertyAccessor.SetProperty("http://schemas.microsoft.com/mapi/id/{00062008-0000-0000-C000-000000000046}/8514000B", true)

message.HTMLBody = <<-HTML

<img src="cid:#{image1}" />
Fill in with delicious HTML
<img src="cid:#{image2}" />

HTML