The fastest way to stop unwanted mail is to block the sender directly
Most email services let you block a sender with one click. 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 "Block". In Apple Mail, select the message and go to Mail > Junk > Add Sender to VIP or Block. Once blocked, that sender's emails go straight to spam or disappear entirely — you won't see them in your inbox.
Blocking works best when you know exactly who is sending the unwanted mail. If the sender is spoofing their address (pretending to be someone else) or using a new address each time, blocking one address won't stop the next one. For those situations, you need a different approach.
The block feature is permanent until you undo it. You can unblock a sender the same way you blocked them — just look for an "Unblock" option in your settings or in the email itself.
Key Takeaways
- Blocking a sender sends their future emails to spam automatically, and takes seconds to do in any major email service.
- Unsubscribe links in legitimate marketing emails are faster than blocking if you straightforward don't want to hear from that company again.
- Filters and rules let you sort mail by sender, subject line, or keywords so unwanted mail goes to a folder without cluttering your inbox.
- Never reply to spam or confirm your email address works — that tells scammers your inbox is active and worth targeting more.
- Reporting mail as spam teaches your email service's filter to catch similar messages from other senders in the future.
Use unsubscribe links for mail you don't want but didn't ask to block
Legitimate companies — retailers, newsletters, services you signed up for — include an unsubscribe link at the bottom of their emails. Click it and you're removed from their mailing list. This is faster and cleaner than blocking because it tells the company to stop sending, rather than hiding their mail after it arrives.
Unsubscribe links work because they're required by law in most countries. If a company ignores your unsubscribe request, you can report them. But most legitimate senders respect it when ready.
Be careful: scammers sometimes include fake unsubscribe links that confirm your email address is real and worth targeting more. Only click unsubscribe on mail from companies you recognize or signed up for. If you're not sure, block instead.
Set up filters to sort unwanted mail automatically
Filters let you move mail to a folder, mark it as read, or delete it based on rules you create. In Gmail, go to Settings > Filters and Blocked Addresses > Create a new filter. You can filter by sender, subject line, keywords, or any combination. In Outlook, go to Settings > Mail > Rules > Add rule. In Apple Mail, go to Mail > Preferences > Rules.
Filters are useful when you want to keep mail from a sender but don't want it in your main inbox. For example, you could filter all mail from your bank's alerts address into a "Banking" folder, or move all mail with "unsubscribe" in the subject line to spam. You can also create a filter that catches mail from a domain — for instance, all mail from anyone at "example.com" — without blocking each address individually.
Test a filter on a few emails before explore it to all future mail. If your filter is too broad, it might catch mail you actually want to see.
Report spam to train your email service's filter
When you mark an email as spam or junk, you're not just hiding it — you're teaching your email service to catch similar mail from other senders. Over time, this makes your spam filter smarter. In Gmail, click the spam icon. In Outlook, click the junk button. In Apple Mail, select the message and go to Mail > Junk.
Report spam consistently, especially from new senders. If you get ten emails from different addresses all selling the same thing, report each one. Your email service uses patterns — similar subject lines, sender domains, links — to identify spam from other senders you haven't seen yet.
Don't report legitimate mail as spam just because you don't want it. That trains the filter incorrectly and can cause problems for the sender. Use "block" or "unsubscribe" for mail from real companies; use "spam" for unsolicited offers, scams, and mail from addresses you don't recognize.
Never reply to or confirm receipt of spam
Replying to spam, clicking "unsubscribe" on a suspicious email, or opening an attachment tells the sender your email address is active and worth targeting. They'll add you to lists sold to other scammers, and you'll receive more mail, not less.
If you're not sure whether an email is from a real company, go to their website directly (don't click a link in the email) and contact them through their official contact page. Never click a link in an email asking you to confirm your password, update payment information, or verify your identity. Real companies don't ask for this by email.
The same rule applies to "remove me from this list" links in suspicious emails. If you don't recognize the sender, block or report as spam instead.
Use a separate email address for shopping and signups
Create a second email address for online shopping, newsletter signups, and services you're not sure about. Keep your main email for people and organizations you trust. This way, if one address gets sold to spammers or added to a list, your primary inbox stays clean.
Many email services let you create aliases or forwarding addresses for free. Gmail lets you add a plus sign and a label to your address — for example, james+shopping@gmail.com — and filter mail to that label automatically. Outlook and Apple Mail support similar features. Some people use a dedicated spam-catching email address and check it only when they need to confirm a signup.
This approach takes more effort upfront but prevents spam from reaching your main inbox in the first place.
Turn on advanced spam filters if your email service offers them
Gmail, Outlook, and Apple Mail all have settings to increase how aggressively they filter spam. In Gmail, go to Settings > Filters and Blocked Addresses and check "Create filter" options for suspected spam. In Outlook, go to Settings > Mail > Junk email and choose "Strict" filtering. In Apple Mail, go to Preferences > Junk Mail and check "Filter junk mail".
Stricter filters catch more spam but sometimes catch legitimate mail by mistake. Check your spam folder once a week to make sure important emails aren't being filtered out. If a sender you trust keeps landing in spam, add them to your contacts or create a filter that sends their mail to your inbox.
Some email services also let you block mail from addresses that don't match your contacts list, or require senders to be verified before their mail reaches your inbox. These are more aggressive and may block mail you want to receive, so use them only if you get very heavy spam.
Frequently Asked Questions
Does blocking someone prevent them from seeing my emails?
No. Blocking only stops their mail from reaching your inbox. If you send them an email, they'll receive it normally. Blocking is one-way — it affects only what you see, not what they can send or receive.
Can I block all mail from a domain instead of individual addresses?
Yes, using a filter. In Gmail, create a filter with "from:@domain.com" in the From field. In Outlook and Apple Mail, you can create rules that block all mail from a domain. This is useful if you're getting spam from many addresses at the same company.
What should I do if I accidentally unsubscribed from mail I wanted?
You'll need to sign up again through the company's website. Unsubscribe is permanent and when ready — there's no undo. If you're unsure whether you want mail from a sender, use a filter to move it to a folder instead of unsubscribing.
Is it safe to click unsubscribe on emails I don't recognize?
Only if the email looks legitimate — it's from a real company you've heard of, has their logo and contact information, and doesn't ask you to confirm personal information. If the email looks suspicious or is from an address you don't recognize, block or report it as spam instead. Scammers sometimes use fake unsubscribe links to confirm your address is active.
Will reporting spam as junk stop me from getting more of it?
Reporting trains your filter to catch similar mail from other senders, but it won't stop the current sender. To stop a specific sender, block them. Reporting is most useful for teaching your email service to recognize patterns so it catches spam you haven't seen yet.