are youi receiving mails from people whom you don't know?

Its called spam. And if you don't want them to keep sending then add them to your spam folder and each time they send you something it will bypass your inbox and dump it in the trash. I wouldn't respond to these messages because they might be phishing for information.

I think if we use free email service, i believe everyone will experienced such thing. Actually there's alot of emails on my mailbox which come from unknown people. Some of them seem using a good spamming technique which we can see if the email is sent directly to our email, not to a group of emails. We should understand that there's a high risk if we take such email seriously. So better we delete it unless the email is come from a trusted people who we are really known already. There's also lots of phising techniques which seem have using a real domain name from the service providers but if we see it more carefully, we can know if the email is a fake email. So better be careful when an email is asking for our login or details information back up due to something which actually is just a fake reason. Have a nice day and happpy mylotting.