feature request: prevent linking of email

[Marc]

> 
> diff --git a/src/lib-storage/index/dbox-multi/mdbox-save.c b/src/lib-
> storage/index/dbox-multi/mdbox-save.c
> index ff6e4f77b0..b522951b1d 100644
> --- a/src/lib-storage/index/dbox-multi/mdbox-save.c
> +++ b/src/lib-storage/index/dbox-multi/mdbox-save.c
> @@ -440,7 +440,7 @@ int mdbox_copy(struct mail_save_context *_ctx,
> struct mail *mail)
>         ctx->ctx.finished = TRUE;
> 
>         if (mail->box->storage != _ctx->transaction->box->storage ||
> -           _ctx->transaction->box->disable_reflink_copy_to)
> +           _ctx->transaction->box->disable_reflink_copy_to || TRUE)
>                 return mail_storage_copy(_ctx, mail);
>         src_mbox = MDBOX_MAILBOX(mail->box);

I think you also have to adapt doveadm force-resync so it convert links to copies of old emails.