I received this problem as an email, but it is of public interest.
There is a bug in the CSS of the default email template!
Your customers using Hotmails webmail see a completely empty message.
This error concerns all versions up to 1.10 and cannot be fixed with an update. You have to manually replace the < head > part of your mail template with the < head > from one of the templates.
It’s a shame you don’t have a donate button! I’d definitely donate to this
excellent blog! I guess for now i’ll settle for book-marking and adding your RSS feed to my Google account.
I look forward to fresh updates and will share this blog with my Facebook group.