If you’d like to place a block against a contact or unknown number, you can set up the block from within your inbox.
1. Swipe from right to left over the conversation in the inbox, and tap Block.
2. Once you tap Block, a new message will pop up confirming that you want to block this number from calling or texting you. Tap Block, and you’ll have successfully blocked this number.
Please note, all messages with the contact will immediately be removed. We recommend taking screenshots of any content you would like to save before tapping "Block".
You can lift a block at any time by sending a message to the number/contact you've blocked. If you don't remember the number you've blocked, send us a message with your Sideline number, password, and the approximate date and time you set the block.