The plugin works perfect for testing purposes so far but triggers a few unnecessary rules which result in the newsletter being treated as spam.
rules triggered for spamassassin(http://wiki.apache.org/spamassassin/FrontPage):
how to avoid: send multi-part message or no images with html(the who is reading image..)
how to avoid: send no big images with your message.. difficult to avoid this one every time
how to avoid: i think multi-part message would also cure this
how to avoid: send a leading <html> tag (and </html> on the end) tried adding this but gets filtered by easymail/wordpress?
how to avoid: send multi-part message
being able to send a multipart newsletter which has a html and a text version would be really helpful for me