The fastest way to stop spam is to block the sender directly

Most email services let you block a sender in one or two clicks. In Gmail, open the email, click the three dots in the top right, and select "Block [sender]". In Outlook, right-click the message and choose "Junk" then "Block Sender". In Apple Mail, select the message and go to Mail > Junk Mail > Mark as Junk. Once you block someone, their future emails go straight to your spam folder and you will not see notifications.

Blocking works best for emails from real people or companies you recognize and want to stop hearing from. It does not stop new accounts created by the same spammer, so if you keep getting similar messages from different addresses, blocking alone will not solve the problem. That is when you need to use filters or report the messages as spam instead.

You can block multiple senders at once in most services. Gmail lets you select several emails and block them together. Outlook has a "Safe Senders" list where you can manage all your blocked addresses in one place. Check your email settings under "Blocked Senders" or "Block List" to see everyone you have already blocked and remove them if you change your mind.

Key Takeaways

  • Blocking a sender sends their future emails to spam automatically, but does not stop new accounts created by the same spammer.
  • Gmail, Outlook, and Apple Mail all have one-click block options in the email menu or toolbar.
  • Reporting spam to your email service trains its filter to catch similar messages from other senders.
  • Creating filters lets you automatically delete, archive, or sort emails based on sender address, subject line, or keywords.
  • Unsubscribing from legitimate mailing lists is faster than blocking and prevents future emails from that company.

Report spam instead of blocking if the sender keeps changing addresses

When you report an email as spam, you tell your email service that the message is unwanted. Your service then uses that report to improve its spam filter for everyone. Gmail calls this "Report phishing" or "Report spam". Outlook uses "Report Junk". Apple Mail says "Mark as Junk". The email moves to your spam folder, and your service learns to catch similar messages from other senders.

Reporting is more powerful than blocking because it helps your filter recognize patterns. If you block one spammer but ten others send nearly identical messages, reporting teaches your filter to catch all of them. This is especially useful for phishing emails (fake messages pretending to be from your bank or a service you use) and mass spam campaigns where the sender uses many different addresses.

You can report emails in bulk. In Gmail, select multiple messages and click "Report spam" once. In Outlook, select several emails and use the "Report Junk" button. Reporting does not remove the sender's address from your inbox the way blocking does, so if you want them gone when ready, block first and report second.

Use filters to automatically sort or delete specific types of emails

Filters let you create rules that automatically handle emails before you see them. You can filter by sender address, subject line, keywords in the body, or a combination of these. Once you set up a filter, matching emails go straight to a folder you choose, get deleted automatically, or get marked as read so they do not show as new messages.

In Gmail, go to Settings > Filters and Blocked Addresses > Create a New Filter. Type the sender address or keyword you want to catch. Then choose what happens to matching emails: send them to a label (folder), skip the inbox, mark as spam, or delete them. For example, you could filter all emails with "unsubscribe" in the subject line to a folder, or send everything from a specific domain to trash.

Outlook filters work similarly. Go to Settings > Mail > Rules > Add Rule. Name the rule, set the condition (sender, subject, or keywords), and choose the action (move to folder, delete, or mark as junk). Apple Mail uses Rules under Mail > Preferences > Rules. You can create filters for newsletters you want to keep but read later, or for senders whose emails you want to see but not in your main inbox.

Filters are more flexible than blocking because you can catch multiple senders at once using keywords. If you get spam with words like "congratulations" or "claim your prize", you can filter those phrases instead of blocking each sender individually. Test filters on a few emails first before explore them to delete messages automatically, since deleted emails are harder to recover.

Unsubscribe from legitimate mailing lists instead of blocking them

Many emails you receive are from real companies or services you signed up for — newsletters, promotional emails, shipping notifications, or account alerts. These are not spam in the technical sense, but they clutter your inbox if you no longer want them. The fastest way to stop them is to unsubscribe, not block.

Look at the bottom of the email for an "Unsubscribe" link. Click it and you will be removed from that mailing list. This usually takes effect within a few days. Unsubscribing is faster than blocking because it stops the emails at the source instead of just hiding them in your spam folder. It also tells the company you are not interested, which is more reliable than blocking if they send from multiple addresses.

If you unsubscribe and still get emails from that sender, then block them. Some companies ignore unsubscribe requests or use it as confirmation that your address is active (which they then sell to other spammers). Blocking is your backup plan. For newsletters you want to keep but read on your own schedule, create a filter to send them to a separate folder instead of blocking or unsubscribing.

Adjust your email service's spam filter settings for stronger protection

Your email service has a built-in spam filter that catches obvious spam before it reaches your inbox. You can usually make it stricter or looser depending on how much spam you receive. Gmail's filter is on by default and fairly aggressive. Outlook lets you choose between Standard, Safe, and Strict filtering levels. Apple Mail has fewer options but lets you mark senders as trusted or blocked.

If you get a lot of spam, move to a stricter setting. In Gmail, go to Settings > Filters and Blocked Addresses and check "Create filter" for common spam patterns. In Outlook, go to Settings > Mail > Junk Email and change the protection level to Strict. Stricter filters catch more spam but sometimes block legitimate emails, so check your spam folder regularly for messages you actually wanted.

If you get too many false positives (real emails marked as spam), lower the filter level or add trusted senders to your safe list. In Gmail, add senders to your Contacts so their emails bypass the spam filter. In Outlook, use the "Safe Senders" list. In Apple Mail, add addresses to your Contacts. This tells your filter to always deliver emails from those senders to your inbox.

Avoid spam by being careful where you share your email address

The best way to reduce spam is to prevent spammers from getting your address in the first place. Do not post your email publicly on websites, forums, or social media. Spammers use automated tools to scan the internet and collect addresses. If you must share your email online, use a format like "name at example dot com" instead of "name@example.com".

When you sign up for websites or services, read the privacy policy to see if they share your email with third parties. Many free services sell your address to advertisers. If you do not want marketing emails, uncheck the box that says "Send me promotional offers" or "I agree to receive marketing emails". Some services make this box checked by default, so look carefully.

Consider using a separate email address for online shopping, signups, and newsletters. Keep your main email for people and services you trust. Many email services let you create aliases or temporary addresses that forward to your main inbox. Gmail's "+" feature lets you add +anything to your address (like name+shopping@gmail.com) to sort emails by category and see which services are selling your address.

Frequently Asked Questions

Can I unblock a sender after I have blocked them?

Yes. In Gmail, go to Settings > Filters and Blocked Addresses > Blocked Addresses and click "Unblock" next to the sender. In Outlook, go to Settings > Mail > Junk Email > Blocked Senders and remove them from the list. In Apple Mail, go to Mail > Preferences > Junk Mail and uncheck the sender if they are listed. Unblocking takes effect when ready.

What is the difference between blocking and reporting spam?

Blocking stops emails from one sender from reaching your inbox. Reporting tells your email service that a message is spam, which trains the filter to catch similar messages from other senders. You can do both: report the email as spam first, then block the sender if you want to be extra sure.

Will blocking someone know they have been blocked?

No. When you block a sender, they do not receive a notification. Their emails straightforward go to your spam folder and you do not see them. They will not know you blocked them unless they try to send you an email and notice you never reply.

Can I filter emails by subject line or keywords?

Yes. In Gmail, create a filter and type keywords in the "Subject" or "Has the words" field. In Outlook, create a rule and set the condition to "Subject contains" or "Body contains". In Apple Mail, create a rule with "Subject" or "Message Content" conditions. This catches emails with specific words even if they come from different senders.

What should I do if I get spam from a bank or payment service?

This is likely a phishing email trying to steal your login information. Do not click any links or read attachments. Report it as phishing (not just spam) by clicking "Report phishing" in Gmail or "Report Junk" in Outlook. Then contact the real bank or service directly using the phone number or website you know is legitimate to confirm whether the email was real.