Exactly. This technique while noble in intent is very easy to subvert. I tried subaddresses for over a year and still found spam coming in without the tag. I d

Exactly. This technique while noble in intent is very easy to subvert. I tried subaddresses for over a year and still found spam coming in without the tag. I don't know if others have had more success with it but I haven't noticed a difference. I'm pretty sure it's just being stripped. Perhaps the reverse is more effective. Use a subaddress for all your mail and ignore that without a label coming in.