[Users] Duplicate messages in IMAP Sent folder

[Paul]

On Sun, 13 Sep 2020 13:20:18 -0400
<edwardp at gmx.com> wrote: 

> This doesn't occur with any of the other IMAP accounts. Is there a
> setting in Claws that will prevent this duplicate e-mail from saving
> in the Sent folder?

I would guess that yahoo is saving a copy to the sent folder by "design", and
you've also configured Claws Mail to save a copy. Maybe not opting to save the
sent message in Claws Mail will result in one copy only.

with regards

Paul