Are these triggered when the email is received or when opened? I am wondering if when spam is sent the originator knows that it hs been received of if only if it is opened? I use Moxilla, is there a way of "disabling" these programs?
Only if and if you click "send read notification".
Outlook supports it. I'm not sure if other programs do. So outlook would block/blank the email until "opened", and ask if you wish to send a read notification (unless setup to automatically do this).
I use Mozilla, and I've not seen any read requests, and if there were any, I can just delete the email or not reply/activate the read request.
Looking at my own email, you can read the email before sending the "read receipt", so it's not automatic... it also means I cannot delete/recall emails before people read them... which I learn in an old job when I sent a joke to "all" instead of my friend next to me. :P :laugh:
Spam senders can of cause know if an email is real, as it will deliver without errors. Same as post, if it does not get "return to sender/address unknown" they know there is a house, but not if anyone is reading it.
Why cannot we set things up so that the spam emails are bumped?
Bumped?
If the email address is not valid, the spammer would receive a bounce back - therefore easy to work out valid addresses. Normally, tracking is done via images being loaded, regardless of you marking the email read or not or sending a formal read receipt. The image may not even be visible.
TB let B=D