Block Sender

BlockSender.io lets you block unwanted emails and spam, giving you control over what lands in your inbox. You can set up advanced blocking rules to fit what you're looking for, and with a browser extension, blocking senders right from your inbox is straightforward. It also has a feature to send bounce-back emails to deter repeat offenders. If you have multiple email accounts, you can share your blocking rules among them, making it easier to manage your emails across different platforms.