I've had a strange and tenacious problem with blank emails, but it only appears to be a problem when sending to myself. The emails are only blank when viewed in Outlook on my PC; they have content when viewed on my webmail interface or iPhone. Also, emails sent to others have NOT had any similar problems.
Troubleshooting done to date:
Uninstalled McAffee AV, in case it was causing a problem. NO CHANGE.
Uninstalled/reinstalled Office 365 (incl Outlook 2016). NO CHANGE.
Tried running in elevated mode. NO CHANGE.
Scanned .ost. Problems found and repaired. NO CHANGE.
Uninstalled Avast AV and associated Outlook add-ins. NO CHANGE.
Tried sending as Plain Text. THIS WORKED. (Yay!!)
So, it appears it is a very local and localized problem - only when sending HTML formatted messages. I'd prefer not to have to resort to plain text only, as I often send myself messages with links and images.
Can anyone think of an underlying cause for something this particular? Suggestions?
Thanks in advance for any help!