--On Sunday, September 08, 2019 8:41 AM -0700 Michael Klontzas
<
m.klo...@gmail.com> wrote:
> There has been no reply to this. Does this mean there is no way to stop
> K-9 from saving sent messages to Sent Items? This seems like an odd
> omission.
Apparently this is caused by the SMTP server within the Office365 server.
Traditionally, the MUA is responsible for copying sent messages to the Sent
folder. But some SMTP servers are now doing this, notably Office365. I
wonder if there's a capabilities item in the SMTP greeting to indicate
whether this is being done? Then the MUA could deal with it automatically.