A collegue ran into an issue with Microsoft Outlook (2010) and the AVG Outlook plugin: when attempting to open mails on a shared Exchange mailbox, the message body would be cleared from that e-mail. The message body would be deleted from Exchange itself as well, resulting in other users accessing the mailbox to also see empty message bodies. If a mail contained attachments, they would be left alone.

After a long search, the culprit seemed to be the AVG Outlook plugin. Upon opening an e-mail, the plugin would scan the e-mail, which somehow went wrong, resulting in clearing the message body (probably because it was marked as bad?). Because of the nature of the mailbox (it's a shared Exchange   ...