when I am sending (SMTP 25) and receiving (POP3 110) any mail then it will show mikrotik log.txt, how to possible it.
Thank you for your information,You can create filter rules to see this :
/ip firewall filter
add action=log chain=forward disabled=no dst-port=25 log-prefix=!!smtp protocol=tcp
add action=log chain=forward disabled=no dst-port=110 log-prefix=!pop3 protocol=tcp
with these you shall see when packets are going to these ports .. but you will not see whats in the packets .. if you want that you will need to go to tools packet sniffer and setup the sniffer accordingly..