The fastest way to stop unwanted email is to unsubscribe, block the sender, or mark it as spam — but each works differently depending on what kind of email you're getting.
Most unwanted email falls into three categories: marketing messages you signed up for but no longer want, email from people or services you know, and spam from strangers. Your response depends on which one you're dealing with. A legitimate marketing email has an unsubscribe link at the bottom; a message from someone you know might need you to block them; and spam from an unknown sender goes straight to your spam folder or gets filtered automatically.
The tools you use also matter. Gmail, Outlook, Yahoo Mail, and Apple Mail each have slightly different buttons and settings, but they all let you unsubscribe, block senders, and report spam. Your email provider also runs filters in the background that catch most spam before you see it — but those filters learn from what you mark as spam, so your actions train the system.
Key Takeaways
- Unsubscribe links at the bottom of marketing emails are the fastest way to stop those messages; they are required by law and usually work within a few days.
- Marking email as spam teaches your provider's filter to catch similar messages in the future, and is the right move for unsolicited bulk email.
- Blocking a sender stops all email from that address, but does not stop them from creating a new address, so it works best for known people, not spammers.
- Gmail, Outlook, and Yahoo Mail all have settings to filter email by sender, subject line, or keywords, which catches unwanted messages automatically without deleting them.
- Your email provider's spam filter improves over time as you report spam, so the more you mark as spam, the fewer unwanted messages you will see.
Unsubscribe from marketing email you no longer want
If you signed up for a newsletter, promotional email, or notification from a website or service, the sender is required by law to include an unsubscribe link. Look at the very bottom of the email — it usually says "Unsubscribe" or "Manage preferences" in small gray text. Click it, and you will be taken to a page where you can remove yourself from that mailing list.
Unsubscribe works because the sender is a legitimate business that wants to follow the law. It typically takes three to five business days for the unsubscribe to take effect, so you may see one or two more emails from that sender before they stop. If you continue to receive email from that sender after two weeks, mark those messages as spam instead — that signals to your email provider that the sender is not honoring unsubscribe requests.
Do not reply to the email asking to be removed, and do not click links in the email body that claim to unsubscribe you. Use only the unsubscribe link at the bottom. Replying or clicking other links tells spammers your email address is active and monitored, which makes your address more valuable to sell to other spammers.
Mark spam and unsolicited email as spam
Spam is email you did not sign up for, from senders you do not know, offering things you did not ask about. It includes fake invoices, prize notifications, phishing attempts, and bulk promotional email from senders who have no unsubscribe link or whose unsubscribe link does not work.
In Gmail, click the three-dot menu on the email and select "Report spam." In Outlook, right-click the email and choose "Junk" then "Block." In Yahoo Mail, click the three-dot menu and select "Mark as spam." In Apple Mail, select the email and click "Junk" in the toolbar. Each time you mark an email as spam, your provider's filter learns to catch similar messages automatically — so the more you report, the fewer spam emails you will see in your inbox.
Do not open attachments or click links in spam email, even to unsubscribe. If the email looks like it might be from your bank, email provider, or a service you actually use, do not click anything in the email itself. Instead, go directly to that company's website by typing the address into your browser, log in, and check your account from there.
Block a sender if you know who they are
Blocking stops all email from a specific address from reaching your inbox. It is the right tool when someone you know is sending you unwanted email — a person, not a spammer. In Gmail, open the email, click the three-dot menu, and select "Block." In Outlook, right-click and choose "Junk" then "Block Sender." In Yahoo Mail, click the three-dot menu and select "Block." In Apple Mail, select the email and click "Junk" in the toolbar.
Blocking does not work against spammers because they do not use the same email address twice. A spammer sends one batch of email from one address, then creates a new address and sends another batch. Blocking that first address stops nothing. For spam, marking as spam is more effective because it trains your filter to recognize the pattern of the message itself, not just the sender's address.
If someone keeps emailing you after you have blocked them, they may be creating new addresses to get around the block. In that case, create a filter rule (see the next section) that catches email by subject line or keywords instead of sender address.
Create filter rules to catch unwanted email automatically
A filter rule tells your email provider to automatically sort, delete, or flag messages that match certain conditions. You can filter by sender address, subject line, keywords in the body, or combinations of these. Filters work in the background and catch email before it reaches your inbox.
In Gmail, click the search box, then click the three-line menu icon and select "Create filter." You can filter by "From," "Subject," "Has the words," or other criteria. Choose what you want to do with matching email — send it to spam, delete it, or move it to a folder. In Outlook, go to Settings, then "Mail" then "Rules," and click "New rule." In Yahoo Mail, click the three-line menu, select "Settings," then "Filters," then "Add new filter." In Apple Mail, go to Mail menu, select "Preferences," click "Rules," then "Add Rule."
Filters are useful when someone keeps emailing you from different addresses but always uses the same subject line or keywords. For example, if you keep getting email with "You have won a prize" in the subject, create a filter that catches any email with those words and sends it to spam. Filters are also useful for newsletters or notifications you want to keep but do not want in your main inbox — you can filter them into a separate folder instead of deleting them.
Adjust your email provider's spam filter settings
Gmail, Outlook, Yahoo Mail, and Apple Mail all have spam filters that run automatically. These filters look at the sender's reputation, the content of the email, and patterns that match known spam. The filter improves over time as you report spam, so marking unwanted email as spam teaches the system what you do not want to see.
Most email providers set their spam filter to a medium level by default — it catches obvious spam but lets some through to avoid accidentally filtering legitimate email. You can usually adjust this setting, but be careful: turning the filter up too high may cause you to miss real email from people you know. In Gmail, go to Settings, click "Filters and Blocked Addresses," and you can see rules you have created and adjust how strictly the filter works. In Outlook, go to Settings, click "Mail," then "Junk email," and choose your filter level. In Yahoo Mail, click Settings, then "Filters," and you can see and adjust your rules.
Do not rely on the filter alone. Marking spam as spam and unsubscribing from marketing email are still the fastest ways to reduce unwanted email. The filter catches what it can, but your actions train it to do better.
Protect your email address to prevent spam in the first place
Once your email address is on a spam list, it stays there. The best defense is to avoid giving your address to senders you do not trust. When you sign up for a website, newsletter, or service, read the privacy policy to see whether they sell or share your email address. Many legitimate companies promise not to share your address; others say they will share it with "partners" or "affiliates."
If you sign up for many online services, consider using a separate email address for those signups — one that is different from the email address you use for people you know and important accounts. That way, if one service sells your address or gets hacked, your main email address stays clean. Some email providers let you create aliases or temporary addresses for this purpose.
Never post your email address publicly on social media, forums, or websites unless you are prepared to receive spam. Spammers use automated tools to scrape email addresses from public pages, so any address you post publicly will eventually end up on spam lists.
Frequently Asked Questions
Does replying "unsubscribe" to a spam email work?
No. Replying to spam tells the sender your email address is active and that you read the message. This makes your address more valuable to spammers and can lead to more spam. Always use the unsubscribe link at the bottom of the email if one exists, or mark the email as spam if there is no unsubscribe link.
What is the difference between blocking and marking as spam?
Blocking stops email from one specific address. Marking as spam teaches your filter to catch similar messages in the future. Use blocking for known people sending unwanted email; use marking as spam for unsolicited bulk email and messages from strangers.
Can I get my email address removed from spam lists?
No service can remove your address from all spam lists. Once your address is sold or shared, it stays in circulation. The best you can do is mark spam as spam, unsubscribe from legitimate marketing email, and create filters to catch unwanted messages automatically.
Why do I still get spam after marking it as spam?
Spammers use different email addresses for each batch of messages, so marking one address as spam does not stop messages from new addresses. Your filter learns to recognize patterns in the email itself, but this takes time. If you keep getting similar spam, create a filter rule that catches messages by subject line or keywords instead of sender address.
Is it safe to click unsubscribe links in email I do not recognize?
Unsubscribe links in legitimate marketing email are safe. But if the email looks suspicious — fake invoices, prize notifications, or messages claiming to be from your bank — do not click anything. Mark it as spam instead. Legitimate companies do not send unsolicited email claiming you have won something or owe money.