SMS Filter curates most-used spam keywords across different categories and uses that to filter spam or junk SMSs. These keywords will be constantly updated to identify spam messages quickly.
No SMS Filter cannot read, store and send any SMS on your iPhone. All SMSs are filtered locally on your device using Blocklist or whitelisted keywords.
SMS Filter only works on unknown numbers (which means they should not be an existing contact in your phone). This is as per Apple’s guidelines for blocking spam content.
Blocklists are specific numbers or keywords that you want to mark as spam or junk. Whitelist are numbers or keywords that you want to always allow. Keywords like OTPs, verification code etc.
Go to the blocklist or whitelist and tap the Add button to add keywords or numbers. If you want to remove any blocklist or whitelist item just swipe left on the item you want to delete.
Yes you can add keywords separated by a comma. If an SMS has those keywords if will be blocked or allowed based on your criteria.
Yes you can use the * operator before or after keywords/numbers like DM-014* or 140932* or *FreeCash* to block specific groups easily.
If you get a lot of junk messages from the same sender and an important message like OTP comes in, then iOS treats the new message as junk too. This is how it is handled by the OS (even if you have added specific keywords to the whitelist)
One option to solve this is to delete the thread first, and then new incoming messages will come in the right folder.
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Open Settings App
Tap on Messages
Tap Unknown and Spam
Enable SMS Filter