Interestingly, gmail trusts the from field, so if I send a message “from” you to your account, it will put it in your sent folder. Urban legend says people hav

Interestingly, gmail trusts the from field, so if I send a message “from” you to your account, it will put it in your sent folder. Urban legend says people have been fired after forged harassment emails were delivered this way. Google claims this is a feature, and the sent “label” isn’t meant to mean that it came from your gmail account. For instance, there could be a corporate service firehosing spam at coworkers on your behalf, and obviously you don’t want to notice that, so it puts it in the sent box.