[Evolution] Sent mail in EWS account stops syncing

[Matthew Saltzman <mjs clemson edu>]

Hello-

In evolution-3.24.4-1.fc26.x86_64, I have an EWS account set up. After
creating the account, it seems to work fine for a while, then I stop
getting updates to the Sent Mail folder. Clicking Send/Receive or
Refresh on that folder doesn't seem to accomplish anything. The only
thing I've found to do so far is delete and recreate the account, which
is a pain as it archives a lot of messages.

Is this a known bug? Is there a known workaround?

Thanks.
-- 
Matthew Saltzman
Clemson University Math Sciences
mjs AT clemson DOT edu