Estudo e implementação do gerenciamento da porta 25(SMTP) na Copel Telecomunicações

Abstract

This monograph presents the study for the implementation of the management port 25 (SMTP) on Copel Telecommunications by applying filter blocking port 25 of the IPs of Copel Telecommunications, using the information obtained from blacklists. The advantage of this procedure is to protect the IP range, decrease the number of spam and clients can send your emails to make sure they are not listed.