If you can't see these options, follow the steps above to block the sender or mark the message as spam. Next to the sender's name, click Unsubscribe or Change preferences.Open an email from the sender that you want to unsubscribe from.All email clients, such as Outlook or Gmail, have a blocking feature or filters that. If you signed up on a site that sends lots of emails, such as promotions or newsletters, you can use the unsubscribe link to stop getting these emails. Someone can block all your email addresses in her own email account. Note that if you choose Security Options, you’ll also have the option to report this message as Spam, or specifically report it as phishing. Select Block or Security Options, and then Block Sender. If you've blocked someone by mistake, you can unblock them using the same steps. Right click the email (or click/tap on the ellipses in the top right). Click the 'Enter a sender or domain here' field. Youll find this option on the bottom-left side of the page. Its beneath the 'Junk email' heading, which is a subfolder of the 'Mail' category. When you block a sender, messages they send will go to your Spam folder. Youll find it at the bottom of the drop-down menu below the Settings 'gear' icon. Note: If someone uses Gmail to harass, intimidate or threaten you, they're violating Gmail's Programme Policies. If you feel that you're in danger, contact your local authorities straight away and ask whether any cyber harassment laws apply to your situation. Subsequent mail will go to the Junk Folder. Locally Right click on a mail from the sender in question>Junk e mail>add sender to blocked sender list. If you're getting emails that you don't want in your Gmail inbox, you can block or unsubscribe from the sender, or report the message to Gmail. This is best achieved if your mail provider offers online Filters, where you can block them.