Error on CHECK payment

I am getting the following error when choosing CHECK as payment type:
Technical information

Error type 2

Error description fsockopen(): unable to connect to localhost:25 (No connection could be made because the target machine actively refused it. )

URL demo.asprunner.net/cjsaputo_comcast_net/Saber_Cart/shoppay_types_add.php?ferror=1&;

Error file C:\UserAccounts\www\cjsaputo_comcast_net\Saber_Cart_20140220120048\libs\phpmailer\class.smtp.php

Error line 132

SQL query select * from shopemails where email='CHECK'