I’m extremely annoyed right now — some spammer is using my Yahoo e-mail address as the return address for spam. That means I’m getting all the bouncebacks from the e-mail. It probably also means my e-mail address will end up on some blacklists. Fortunately, I use that e-mail address mainly for receiving mail from businesses, not sending. But it’s still infuriating.
It’s ridiculous that sender authentication for email isn’t standard. I’m not saying that all email addresses need to be registered by the government or anything like that, just that in order to send an email from a particular address at a domain, there should be authentication from that domain. So, for example, if someone wants to send an email from jqpublic@example.com, it could only be sent through example.com’s mail server (or by checking a password with example.com.)