Some junk is easier to recognise by what it says than by who sent it. If the same message keeps arriving from a different address every time, blocking senders one at a time is a losing battle. You can block it by the words in the subject line instead, using a filter on your [Custom Blocklist](/doc/the-custom-blocklist-VXGdgF3Vpy). ## When this is the right tool A subject filter is a good fit when: * The subject line is always the same, or nearly the same * The sender address changes with every email * You can't block the domain, because it's a Gmail or Outlook address and you get real mail from those too If the sender address stays the same, you don't need a filter. Just add the address or the domain to your Custom Blocklist. ## Add a subject filter 1. Go to your [Custom Blocklist](https://app.leavemealone.com/spam-blocker/custom). 2. Click **Add filter**. 3. Set the field to **Subject**. 4. Set the type to **Contains**. 5. Enter the word or phrase you want to block, for example `Apply for Loans & Business Financing`. 6. Click **Add and close**. That's it. From now on, any email arriving with that phrase in the subject gets blocked. :::tip Pick the most specific phrase you can live with. "Apply for Loans & Business Financing" will only catch the thing that's bothering you. "Apply" will catch a lot of email you still probably want. ::: ## Narrowing it down Click **Show advanced options** on the filter and you can be more precise: * **Email account** - apply the filter to one of your connected accounts instead of all of them * **Recipient email** - apply it only to mail sent to one of your aliases * **Sender email** - apply it only to particular senders, on top of the rest of the filter Leave these alone and the filter applies to all your accounts and all senders. ## What happens to the emails we block Nothing is ever deleted. Your Custom Blocklist is the first check we run, before our own spam check, so your own rules always win. Blocked emails are moved out of your inbox into your blocked folder, which is `_lma-shield/spam` unless you've changed it, and they appear on the Spam Blocker page with a **blocklisted** label. There's more on this in [How does the Spam Blocker work?](/doc/how-does-the-spam-blocker-work-nBEBSlBpjW). If you use the Screener, blocklisted senders are screened out of your inbox as well. You'll find them in your Screened Mail view by filtering by "blocked", and they won't be included in your Screener Digest. ## If your filter catches something you wanted It happens, and it's quick to fix. 1. On the [Spam Blocker page](https://app.leavemealone.com/spam-blocker), click the **blocklisted** label next to the email and choose **Move back to inbox**. Moving the email back yourself in your email client works too, we watch for that. 2. Go back to your [Custom Blocklist](https://app.leavemealone.com/spam-blocker/custom) and make the filter more specific, or delete it. Still not behaving the way you expect? [Get in touch](https://leavemealone.com/contact-us) and tell us the phrase you filtered on and a couple of examples, and we'll take a look with you. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the search API with the q parameter: ``` GET https://help.leavemealone.com/api/search?q= ``` The query should be search terms that you're trying to find to answer your question. The response will contain relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.