Mark the email as spam in your email provider

Every major email service has a spam button. The exact location depends on which service you use, but the action is the same: you select the message and tell your provider it is unwanted. Your provider then moves it to a spam folder and learns from the pattern — if you mark many emails from the same sender as spam, future messages from them are more likely to land there automatically.

In Gmail, open the email and click the trash icon in the toolbar, then select "Report spam" from the menu that appears. You can also click the three-dot menu icon and choose "Report phishing" if the email looks like a scam attempt. In Outlook (including Hotmail), click the trash icon and select "Junk" or "Phishing" from the dropdown. In Apple Mail, click the flag icon and select "Mark as Junk". In Yahoo Mail, click the trash icon and choose "Spam".

Key Takeaways

  • Marking spam trains your email filter to catch similar messages in the future, so the more you report, the better your filter learns your preferences.
  • Each email service has a different button location, but all of them offer both a general spam option and a phishing option for suspected scams.
  • Unsubscribe links in legitimate marketing emails are safer than marking them spam, because spam marking tells your provider the sender is unwanted, while unsubscribe tells the sender directly.
  • Marking spam does not remove your address from a sender's list, so if you receive repeated messages from the same source, you may need to block the sender entirely.
  • Your spam folder typically keeps messages for 30 days before deleting them, so you can recover a wrongly marked email if you notice it quickly.

The difference between spam, junk, and phishing

Your email provider usually offers more than one reporting option, and choosing the right one helps the system learn faster. Spam is unsolicited bulk email — newsletters you never signed up for, promotional messages, or emails from unknown senders trying to sell you something. Junk is similar but often refers to email that is not necessarily malicious, just unwanted by you personally. Phishing is a scam attempt designed to steal your information, usually by impersonating a bank, payment service, or company you use.

If an email asks you to click a link and "verify your account" or "confirm your password", or if it claims there is a problem with your payment method and you need to act now, mark it as phishing rather than plain spam. Phishing reports go to a separate team at your provider and help protect other users too. Spam reports train your personal filter; phishing reports help the whole system.

Why unsubscribe is better for marketing email

If you receive a newsletter or promotional email from a company you recognize — even one you do not want — look for an "Unsubscribe" link at the bottom of the message before you mark it spam. Unsubscribe is usually a single line of small text in the footer. Clicking it removes your address from that sender's list directly, so you stop receiving their emails without training your filter against them.

Marking a legitimate company's marketing email as spam can cause problems. Your provider may start filtering all email from that sender, including transactional messages you might need — order confirmations, shipping notices, password resets. If you unsubscribe instead, you remove yourself from their marketing list but keep receiving important account notifications. Unsubscribe also tells the company your address is active, which can sometimes lead to more email, but it is the cleaner way to opt out of messages from senders you recognize.

What happens after you mark something spam

When you mark an email as spam, two things happen. First, the message moves to your spam folder when ready. Second, your email provider logs the action and uses it to adjust your filter settings. If you mark five emails from the same sender as spam, the sixth one is more likely to go straight to spam without you having to do anything. Over time, your filter learns which senders and types of messages you do not want.

The spam folder itself is not permanent. Most providers keep spam for 30 days, then delete it automatically. Gmail keeps spam for 30 days; Outlook keeps it for 2,500 items or 30 days, whichever comes first; Yahoo keeps it for 7 days. If you mark something spam by mistake, you have a window to find it in your spam folder and move it back to your inbox. After that window closes, the message is gone.

Blocking a sender versus marking spam

Marking spam trains your filter, but it does not stop a sender from emailing you again. If you receive repeated messages from the same address despite marking them spam, you may need to block the sender instead. Blocking is a stronger action — it prevents that specific email address from reaching your inbox at all, and usually prevents you from seeing their messages even in your spam folder.

In Gmail, open an email from the sender you want to block, click the three-dot menu, and select "Block [sender]". In Outlook, right-click the sender's name and choose "Block". In Apple Mail, select the email and go to Mail > Junk Mail > Add Sender to Junk Mail List. In Yahoo Mail, click the three-dot menu and select "Block". Once you block someone, their future emails go to spam automatically and you will not be notified about them.

Spam filters are not perfect

Even after you mark messages spam, some unwanted email will still reach your inbox, and some legitimate email will land in spam by mistake. This happens because spam filters use patterns — sender reputation, message content, links, attachments — to make split-second decisions about thousands of emails. No filter is 100 percent accurate.

If you notice important email going to spam regularly, you can add that sender to your contacts or create a filter rule that sends their messages to your inbox automatically. In Gmail, you can star an email from that sender and create a filter based on the star. In Outlook, you can add them to your Safe Senders list. These actions tell your filter to trust that sender, which overrides the spam detection. The more you train your filter — both by marking unwanted email as spam and by protecting wanted email from the spam folder — the better it works for you personally.

Frequently Asked Questions

Does marking spam remove my email address from their list?

No. Marking an email as spam tells your provider you do not want it, but it does not notify the sender. If the sender is using your address legitimately, they will keep sending. Only unsubscribe links or blocking the sender will stop the messages. If you receive spam from an address that looks fake or is clearly a scam, marking it spam is your only option since there is no real sender to unsubscribe from.

Can I recover an email I marked spam by mistake?

Yes, if you catch it quickly. Go to your spam folder, find the message, and move it back to your inbox. Most providers keep spam for 30 days before deleting it permanently. After that, recovery is not possible. If you mark something spam regularly by mistake, create a filter rule to send that sender's emails to your inbox automatically instead.

What is the difference between marking spam and reporting phishing?

Marking spam trains your personal filter. Reporting phishing alerts your email provider's security team and helps protect other users from the same scam. If an email asks you to verify a password, confirm payment information, or click a suspicious link, report it as phishing. For unwanted newsletters and promotions, regular spam marking is fine.

Will my email provider contact the sender if I mark their email spam?

No. Your provider does not notify senders when you mark their email spam. The action is private — it only affects your filter and your spam folder. If you want the sender to know you do not want their email, you must unsubscribe or reply to them directly, but neither is necessary for spam to work.

Should I open an email before marking it spam?

It is safer not to. If an email looks suspicious — unknown sender, urgent language, requests for personal information — mark it spam without opening it. Opening a phishing email can sometimes trigger downloads or load tracking pixels that tell the scammer your address is active. If you are unsure whether an email is real, mark it spam or phishing first, then contact the company directly using a phone number or website you know is legitimate.