Hello, after setting up Win7/Tb/Eset I recognized Thunderbird multipling an email from my repository until our server's harddisk complained about shrinking space. details: 30sec to 3min after Thunderbird started, the statusbar showed my email folders beeing scanned. This scan stopped on a "random" selected email in the IMAP shared folders and started multiplying this email until the harddisk was full of emails. This issue appears repeatable only in the shared folders, but every time thunderbird runs with activated eset-plugin. Configuration: Windows 7 TB3.04 via IMAP to qmail/courier-server with shared folders ESET NOD32 18.104.22.168 Due to the plugin not beeing showed in the list of ADD-ONs or Plugins, I recognized it relativly late and filed a bug in TB Bugzilla. There is also a imap-log available. https://bugzilla.mozilla.org/show_bug.cgi?id=563895 Is this issue already known? Can this issue be solved? Is the thunderbird-plugin from ESET already usable for production environments ?