Tag Archives: Mikrotik

SMTP Spamming in ISP ..

SMTP works on port 25 and SMTP are used for mail transmission, But SMTP itself is not secure, The main disadvantage is it can be easily hacked or spammed. There are so-called “fake emails” that are messages sent using any address (for example abc@abc.com) to any recipient. Another issue In an ISP network, Most often you may have… Read More »