Question: Someone using your software is sending SPAM with my using my URL. How can you and/or I immediately stop this from happening again?
Answer: I recommend you to read this page. Actually anyone with whatever email software can hack an email account and send stuff on your behalf. This is much more easy to do that you can imagine. We can do very little here. Indeed a software of ours may have been used but it was very likely a pirated copy. The people behind are very likely from some remote country you have never heard about and are hidden behind anonymous proxies.
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