Here is how to block spam messages on iPhone: open Messages, tap Filters, then Manage Filtering, and turn on Screen Unknown Senders. On iOS 26, Filter Spam is on by default, but you can check it in the same menu.
Those are the basic steps for how to block spam texts on iPhone. Report obvious junk, block repeat senders, and forward unwanted texts to 7726 (SPAM) when your carrier supports it.
Those steps reduce the noise. They cannot block every spam text because scammers change phone numbers, use compromised accounts, and sometimes send messages that look like real bank, delivery, or security alerts.
The safest setup has three layers:
- Let the iPhone separate unknown senders and known spam.
- Report and block messages that get through.
- Never use the link or phone number inside an unexpected message to check whether it is real.
How to block spam texts on iPhone
Apple's current controls depend on the version of iOS you use.
On iOS 26
- Open Messages.
- Tap Filters at the top of the conversation list.
- Tap Manage Filtering.
- Turn on Screen Unknown Senders.
- Open Text Message Filter and turn on the filters you want to use, including any installed third-party filtering extension.
Filter Spam is on by default in iOS 26. If it has been turned off, you can enable it from Manage Filtering. Messages identified as spam move to a Spam folder and do not send a notification. You can still review that folder and move a legitimate message back to your inbox. Apple’s labels and available controls can vary by iOS version, country, and carrier.
You can also find these controls in Settings → Apps → Messages.
On an older version of iOS
Go to Settings → Apps → Messages and turn on Filter Unknown Senders if it is available. The wording and location may differ slightly by iOS version.
Filtering unknown senders is useful, but check the filtered folder occasionally. A doctor, delivery driver, school, or new contact may be writing from a number you have not saved.
Using Android instead? These are iPhone paths. Android menus differ by manufacturer, carrier, and messaging app; use the spam and unknown-sender controls in the Google Messages or Samsung Messages app rather than copying the iPhone steps.
Report and block a spam text
If you have not replied to the message, iOS 26 may show Report Spam. Earlier versions or some services may use Report Junk. Use the option shown, then delete the message. Depending on the message type, country, and carrier, the report may be shared with Apple or your carrier.
Reporting and blocking are separate actions:
- Reporting helps identify abuse.
- Blocking stops that phone number or contact from messaging you again.
- Filtering moves certain messages out of your main conversation list.
Blocking one number does not stop the same scammer from using another number. That is why reporting, filtering, and careful link handling work better together.
Can you block all spam texts on iPhone?
Not reliably. Be cautious with any app or setting that claims it can block all spam texts.
Scammers rotate numbers, imitate legitimate senders, and change the wording of their messages. A filter that blocks everything from unknown numbers could also hide a real verification code, medical message, delivery update, or first message from someone you know.
The more practical goal is to:
- keep obvious spam out of your main inbox;
- reduce unwanted notifications;
- catch suspicious patterns before you tap;
- make important messages easy to verify outside the text.
If a message seems believable because it includes your real name, bank, employer, or recent purchase, read why targeted scams can feel unusually real.
iPhone scam protection: blocking spam is not enough
Spam is usually unwanted advertising or repeated noise. A scam message tries to get money, login details, a verification code, or another action that benefits the sender. Some scam texts look polished and arrive only once, so blocking repeat senders will not catch them.
For example, a fake online banking activity alert may imitate a real security notice. A scam email can also include your actual name, address, or account details. In both cases, the safest move is to leave the message and check the account through its real app or website.
If the message sounds unusually polished or knows details about you, read how AI phishing emails can look convincing before trusting the wording.
Rampart adds a separate warning layer for suspicious SMS and connected Gmail or Outlook email. It looks for risky message patterns, but it does not replace Apple settings, your carrier, or independent account checks. See exactly what Rampart checks and what it cannot see.
How to stop getting so many spam texts
Use these habits together:
- Do not reply. Apple says you cannot report a message as spam after you reply to it.
- Do not tap “unsubscribe” in a suspicious text. Legitimate marketing programs should honor it, but a scam link can lead somewhere unsafe.
- Report and delete. In the United States, the FTC recommends using the phone's report-junk option or forwarding unwanted texts to 7726 (SPAM).
- Block repeat senders. This will not stop number rotation, but it prevents more messages from that sender.
- Review your notification choices. On iOS 26, you can decide which categories of messages from unknown senders are allowed to notify you. Options vary by country and region.
- Open the real app yourself. If the text mentions a bank, delivery, toll, tax, Apple Account, Microsoft account, or payment service, leave Messages and open the official app or type the known website yourself.
The last habit matters most. A filter can reduce interruptions, but verification through a trusted route protects you when a convincing message still arrives.
The “open it yourself” rule
For an unexpected bank, delivery, tax, school, email, Apple Account, PayPal, Microsoft, or payment message:
- Do not tap the link.
- Do not call the number in the message.
- Open the official app yourself.
- Type the website yourself or use a saved bookmark.
- Call the number on your card, bill, account page, or official website.
This is intentionally simple. It breaks the route the scammer controls.
How to block spam emails on iPhone
The iPhone displays email from different providers, so the best control depends on whether you use Apple Mail, Gmail, Outlook, or another mail app.
In Apple Mail
- Open the email, tap the sender's name, view the contact card, and choose Block this Contact for a repeat sender.
- Use Move to Junk for spam. With iCloud Mail, marking a message as junk helps improve future filtering.
- Do not confuse the Promotions category with junk. A legitimate receipt or newsletter can appear there.
In Gmail or Outlook
Use the provider's own Report spam, Report phishing, or Block sender control. That gives Gmail or Microsoft the signal they need to filter similar mail for your account. Simply deleting a message does not provide the same feedback.
Blocking an email address is helpful for repeat mail, but phishing campaigns often rotate addresses and domains. Check the full sender domain, the request, the attachment, and the destination of any link.
Where to report a scam text in the US
Use the route that matches what happened:
| What happened | Where to report |
|---|---|
| Unwanted or suspicious text | Use Report Spam/Report Junk when offered and forward it to 7726 if your carrier supports it |
| You shared money or personal information | Report at ReportFraud.ftc.gov and contact the bank or payment service immediately |
| A bank account or card is involved | Call the number on the card or inside the official bank app |
| Your phone suddenly lost service | Contact your carrier from another device and ask about an unauthorized SIM change |
| The message threatens immediate harm | Save evidence and contact local law enforcement if anyone may be in danger |
After reporting the message through the appropriate route, block the sender if needed and delete the message.
A ten-minute setup for a family member
If I were making a family member's iPhone safer, I would:
- Turn on Screen Unknown Senders and check that spam filtering is active.
- Save their bank, doctor, school, pharmacy, and close family numbers.
- Put the bank and delivery apps they actually use on the Home Screen.
- Show them where the Unknown Senders and Spam folders are.
- Practice opening the real app instead of using a message link.
- Add a dedicated scam filter if suspicious texts and emails are frequent.
The point is not to take over anyone's phone. It is to make the safer action easier when a message creates urgency.
For a privacy-respecting family setup, read how to protect your parents from scams without taking over their phone or how to protect kids from scams.
Frequently asked questions
How do I block messages from unknown senders on iPhone?
Open Messages, tap Filters, then Manage Filtering, and turn on Screen Unknown Senders. You can also look under Settings → Apps → Messages. Check the filtered folder occasionally because a legitimate new contact may appear there.
How do I report a spam text on iPhone?
Use Report Spam or Report Junk when Messages offers it. In the United States, you can also forward the text to 7726 when your carrier supports that service. Save any evidence you need before deleting the message.
Why am I suddenly getting so many spam texts?
Your number may have appeared in a data breach, marketing list, public profile, or random number campaign. A sudden increase does not necessarily mean your iPhone was hacked. Do not reply; filter, report, and watch for repeated themes that use your real details.
Does blocking a number stop spam texts?
It stops messages from that number or contact. It does not stop a sender from switching numbers, so blocking works best with reporting and filtering.
What is the difference between spam and a scam message?
Spam is unwanted bulk messaging, often promotional. A scam message is deceptive and tries to make you send money, share information, reveal a code, call a fake support number, or open a dangerous link. A message can be both spam and a scam.
Does iPhone have a built-in spam text blocker?
Yes. iOS 26 includes Screen Unknown Senders and a Spam folder, and Apple supports third-party text-filter extensions. Availability and notification controls can vary by country, carrier, and iOS version.
Should I reply STOP to a spam text?
Reply STOP only when you recognize the business and previously agreed to receive its messages. Do not reply to an unexpected or suspicious text; report and delete it instead.
How do I stop spam emails on iPhone?
Mark the message as junk or spam in the app for your email provider, block repeat senders, and use Report phishing for deceptive email. Do not open suspicious unsubscribe links, attachments, or login pages.
Sources
- Apple Support, View conversations from unknown senders in Messages on your iPhone
- Apple iPhone User Guide, Screen and filter text messages on iPhone
- Apple iPhone User Guide, Report spam and block senders in Messages on iPhone
- Apple iPhone User Guide, Flag or block emails in Mail on iPhone
- Apple iPhone User Guide, Organize email in mailboxes on iPhone
- FTC, How to recognize and report spam text messages