+1 !
I think it’s the most important feature to get tracking by mail type :
welcome email
password reset
alert email
etc
I am able to get arguments but not the categories :
$headers[] = ‘unique-args:type=Welcome;’; -> WORK
$headers[] = ‘categories:Welcome;’; -> DOESN’T WORK
Is there any other way of getting the category ?
If not, when are you going to develop it ?
Thanks a lot,