There is an email I need to send but attachments can't be base64 or my email gets rejected. I checked within Gmail settings to see if there was some sort of option to change that but found nothing. ...
I do not necessarily mean virus or malware, but can normal-looking Gmail attachments like PDF have some kind of hidden function to let the sender know information about the recipient, such as when or ...
Today my Gmail login activity has shown me that I was twice logged in from a strange place and additionally, I found in my trash label two emails from (unknown sender) with subject 'Attachment' with ...