Help – modify mail templates

Hi,

I would like to modify how the mail is formatted.

My problem is that the ex-admin of the website installed your plugin (and it works very well), but he didn’t tell me how to customize the plugin. I need to modify the layout how the mail is sent. I found I can modify the translations file, but I didn’t find where to modify the mail structure.

Thanks for your precious help.

http://ww.wp.xz.cn/extend/plugins/buddypress-group-email-subscription/