[Users] Duplicate messages in IMAP Sent folder

[Dave Howorth]

On Sun, 13 Sep 2020 14:36:32 -0400
<edwardp at gmx.com> wrote:

> On Sun, 13 Sep 2020 18:17:00 -0000
> Paul <claws at thewildbeast.co.uk> wrote:
> 
> > 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  
> 
> If you are referring to Preferences/Mail Handling/Sending/Save Sent
> Messages, un-checking that box will not save /any/ outgoing messages,
> it was tested with non-Yahoo/AOL IMAP accounts.

So perhaps it's worth investigating the Yahoo account options in detail
to see if *they* have an option not to save an extra copy, since this
seems to be a Yahoo problem rather than a claws-mail one?