This isn’t an inbox mechanism on the site. When a person replies to you, the letter will automatically be sent to you like normal mail.
If the sender used your email address, you will receive an email with the letter. Please make sure that e-postman.co.uk is on your approved domains list in your email so that these letters aren’t sent to your junk folder. It is also suggested that when you register you use the email address you’d like these letters to come to – because that email address is shown on letters you send and will likely be used to send letters back to you.
If the sender addressed a letter to you to a physical address, the letter will arrive in normal mail. This does take longer and we suggest you ask them to write to your email address next time.