The workaround is to disable (unselect) scanning of email attachments in Real time scanning settings. has nothing to do with AS .
that said Support is calling me up Saturday and getting another set of logs that cover more than they previously took from other users. Hopefully this will get movement.
Was fixed July 2013 I reported it had returned Last December but McAfee have not been able to repro it on their machines. I tested latest McAfee and Thunderbird today same issue.
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Moved this provisionally from Consumer to General Discussion - Moderator