"description":"On reply to a message user identity selection is based on\n\t\tcontent of standard headers like From, To, Cc and Return-Path.\n\t\tHere you can add header(s) set by your SMTP server (e.g.\n\t\tDelivered-To, Envelope-To, X-Envelope-To, X-RCPT-TO) to make\n\t\tidentity selection more accurate.",