You can message other Quora users using our 'Messages' feature.
To locate this option on the web, click on your profile icon in the upper-right, then click on 'Messages'. If you're using our mobile app, tap on your profile icon in the upper-left, then tap on 'Messages'. To send a new message, click on the 'New Message' button in the bottom-right (on the mobile app, tap on the 'Compose' option located in the upper-right).
You can also message a user directly by visiting their profile, clicking on the 'more' menu below their name & bio (e.g., the "..."), then clicking the 'Message' link in the drop-down menu.
You can control who sends you messages on Quora, and you may not be able to message all users on Quora (depending on their settings). The default mode for messaging is that, with some exceptions, you will only receive messages from people you follow. You can still allow anyone to message you by changing your. You can also choose to turn off messages altogether. These settings mean that new messages you receive will generally be from people that you connect with, and there will be less risk of spam or harassment from strangers.