Hi
Yes we are using cloudflare to provide https://
We are using the cloudflare flexible SSL plugin to stop the redirect loop issue and have changed the site address as follows
WordPress Address (URL)
http://www.postpullers.co.uk
Site Address (URL)
https://www.postpullers.co.uk
We are also using the All in one SEO plugin with Canonical URLs set to https://
If I manually change the links to https and press save, it will work for that one time. But when I go back to edit the newsletter again, they all replace themselves with //
Also, I found that if an email is sent with // in the picture URL it will crash MS Outlook