Is there a trick to getting Mime Mail to recognize by-mailkey theme templates? I have installed Mime Mail 7.x-1.0-alpha1 and got it set up and working for the most part.  The thing I'm having trouble with is getting it to recognize a by-mailkey template. I have been able to copy the mimemail-message.tpl.php into my theme directory, modify it and have it apply to the HTML email I am sending just fine.  I can put that file anywhere in my theme directory and it finds it and overrides the default. I cannot however get it to recognize a by-mailkey template no matter where I put it in my theme directory.

I have an email with the key help_wanted set. I have created a template file called mimemail-message--help-wanted.tpl.php, which I believe is the correct template name to apply to the email with that key.  I have cleared the cache and sent the email, but the default template is still applied.

I have also tried using mimemail-message--help_wanted.tpl.php with no luck.

I know the proper key is being passed because I can set up the mimemail-message.tpl.php to override the default template and print out the $key variable in the template and get help-wanted.

Does anyone have any experience with this and might know what I could be doing wrong?
Use latest dev version of Mime Mall module. It doesn't work in 7.x-1.0-alpha1 and 7.x-1.0-alpha2.

But you can also make a quick hack. In file mimemail.module need to comment the row #531 

$key = str_replace('_', '-', $key);


After that you can use mimemail-message--help-wanted.tpl.php template.