How does Snailmail work?

Snailmail is old-fashioned letter writing and sending in the mail to a physical address. You can request someone's address by clicking the snailmail button on their profile and if they accept your request then you will be able to see their address. At that point they will also be able to see your address. If you receive a snailmail request then you can accept it and addresses will be exchanged or you can reject it and they will not be able to see your address nor you theirs. In order to find people who are keen to send and receive old-fashioned letters then you can either see a list of snailmail users under "find penpals" or you can adjust your ideal penpals settings to only show those who are "interested in received letters"

What you need to do is ensure that your address details are up to date via My Account/Contact Details, and that the snail mail box next to it is ticked. Then, when you see someone who takes your interest, you can request snail mail via their profile and, if they approve, your addresses will be swapped. You can search specifically for people who want to write letters via My Account/Ideal Penpal Preferences.