Exchange Server 2013 runs on Windows Server series and provides numerous services for users, which are required to perform several functions such as supports in-built antimalware, enhancement of Outlook on web, etc. Out of which one such feature is to configure a relay connector Exchange 2013 to deliver mapping between diverse ISPs for sending and receiving of mail messages. In today’s world, in almost every organization numerous applications or devices are utilized that needs SMTP services to perform the functions. In the following discussion we, will discuss the systematic procedure on how to configure a relay connector for exchange server 2013.