On Fri, 15 Feb 2019, aitor_czr wrote:
> >
> Sorry for the typing and size changes throughout some of my emails, it happens
> to me using thunderbird. I'll switch to clawsmail :)
>
> Aitor.

Set thunderbird to text email NOT html.

Any way I didn't see any "typing and size changes" as I use a text only
mail client.