The sub-addressing option on Bitfinex provides customers with a convenient way to streamline their email communications without the need to create separate email addresses for each sub-account. Bitfinex customers can conveniently use their master account email with a "+tag" to create unique sub-account addresses. For instance, if your master account email is "master@server.com," you can create sub-account emails like "master+tokens@server.com" or "master+papertrading@server.com," and all emails will still be routed to your master account's original inbox. Additionally, sub-addressing facilitates email filtering, enabling you to keep your mailbox organised with dedicated folders for each sub-account. Important: Not all email servers allow sub-addressing. Please ensure compatibility with your email server or provider before using this feature. The list of compatible email servers can be found here. Log in to your account and try the exciting new feature now: https://www.bitfinex.com/login.