Something to note. If you use a web-based email (and actually use the on-line web view) to view emails then usually the software behind the website (such as hotmail) follows the links by “ghost clicking” the links (to create pre-views) when you open each mail. Even if you don’t click any links, most spammers (and legit bulk mailers, such as nationbuilder) can work out if your e-mail account is a valid and live account by traceback links.
A good reason to always use a real email client on your pc and download emails from on-line web-view based accounts. Also on the email client set “view as text only”, again to stop the software ghost clicking links.
Obviously if you use a phone as your main method of viewing emails, and/or a browser you may be SOL.
It should be noted, ghost clicking doesn’t compromise your account in anyway but it does mean a sender can know not only that you read the email, but also when you read the email.