On Thu, Jul 11, 2019 at 5:08 PM Stephen Morris <samorris@netspace.net.au> wrote:

On 11/7/19 1:48 pm, Ed Greshko wrote:
On 7/11/19 11:39 AM, JD wrote:
Writing a new message always starts the format in "Pararaph" mode

instead of  "Body Text"

And this leads to the messages being double spaced.

How can I change it so it will default to Body Text every time?

Thanx! 
Preferences-->Composition (find the check-box)
Hi,
    Just one question on this, having unchecked that check box. In the 'Send Options' settings the version of Thunderbird I am using has 'Send Messages in Plain Text if Possible' selected by default, is plain text the preferred format for messages to this list or is html the preferred format?

regards,
Steve

I think plain text is the preferred format.