Crazy Mail is a Email sender written in VB. It is a tool that utilizes public SMTP servers to send email (or spam) to anyone you want, supporting both single receiver and a list of email addresses. It enables you to send a lot of emails containing the same contents, at most 32767 times.
The program was based on Winsock, by which I implemented the protocol of SMTP. I utilized this tool and sent a lot of spam at that time, for the anti-spam system is not so strong as nowadays.
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