yes, there are filter hooks in the plugin which you can use to add whatever you want to groups as well as posts within the groups. I don’t recall If I’ve added an action or filter for the header and footer, but if needed I could add one.
@Dwenaus I think that’s a little beyond my understanding, but I’ll work it out. I would think header and footer would be what I was really after – for some simple branding.
we’ll look into adding that soon. @boonebgorges is editing the plugin now for his site, so I’ll mention it to him.
@ewebber quick fix, which we’ll implement in a future version. in the file bp-activity-subscription-digest.php around line 53 after the else $title… insert this line
`$title = apply_filters( ‘ass_digest_title’, $title, $type );`
then a few lines down (around line 61), after the $footer is set the final time add this line:
`$footer = apply_filters( ‘ass_digest_title’, $footer, $type );`
you can then add filter hooks (http://codex.wordpress.org/Function_Reference/add_filter) to change those values. just remember to return the passed value as well or you’ll loose the default header and footer.
@dwenaus, thanks – I’ll give it a go
Just came across this plugin WP Better Emails http://wordpress.org/extend/plugins/wp-better-emails/ that compliments group email subscription and other notifications from Buddypress (and WP) nicely, so I thought I’d share 
More on it here: http://bp-tricks.com/featured/creating-a-custom-email-template-for-your-buddypress-emails/
After installing this plugin on my test site, i cant access my Admin Area anymore, i dont know what to do now.
thank God its on my test site.