attachments from Exchange IMAP servers.
Details are at:
- Go to Tools->Options or Edit->Preferences
- Go to 'Advanced' Tab
- Click 'Config Editor' button
- Enter 'mail.server.server' as the filter
- Browse through your servers until you find the one that is your Exchange
- IMAP server. eg in my case it was 'server3'
- Right-click in the table and add 'New->Boolean'
- Enter the name mail.server.server<number>.fetch_by_chunks, and set it to
'false' (eg i have mail.server.server3.fetch_by_chunks=false).