Spoof mail?

I recently had a requirement for Microsoft Access for my Mac and decided that I would purchase VMware Fusion to make the link with Windows 7. All went well with the installation and I am now able to view MS Access files from several years ago. I have been a Mac user since the Apple II and, to me, it’s the most reliable system in operation today. However, suddenly, my Co-Director started receiving emails supposedly from me with no content, just a gibberish word in the message box. Having loaded Thunderbird as an email provider in Windows, I have a bespoke email address in Thunderbird and a Gmail account that was also sent to my colleague. There was no malice or content in the emails but two were also sent to my colleague from a mac.com address.

I do recall that when I was configuring Windows 7 to my requirements, I kept receiving a pop-up message from McAfee (which I hadn’t loaded). However, since removing my email clients from Windows 7, I have not experienced further nuisance mails. This makes me wonder if it is feasible that the security software houses could send out rogue emails promoting the need to buy security. I have to say this is a real puzzle and one I haven’t come across before. Barry Wilbraham