I been trying to send emails from my WP at x10premium hosting and they keep saying my emails are spammed because the are only in HTML.
Thank you! I install this plugin and immediately my emails work again.
I developed this plugin to up my Spam Assassin score (mail-tester.com).
With this plugin, a valid SPF record and DKIM signed emails I get a 9.5/10 score for my HTML emails, which makes it really hard for my emails to land in someones spam folder. :-)
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