Welcome email text file strips carriage returns

Thanks for the responses.

I'm running FireFox Thunderbird that doesn't appear to have that type of
setting, if it does, doesn't have an option to turn on/off.

No, that's from the General Options page, I've not added anything to the
"List-specific text prepended to new-subscriber welcome message" box so
didn't associate it with what I'm working on the "Welcome email text
file" page (admin URL ending in /subscribeack.txt) which has no info
link to any wrap rules.

Seems the rules used on the "List-specific text prepended to
new-subscriber welcome message" box are also used on the contents of
what you add to "Welcome email text file" page.

Note that this text will be wrapped, according to the following rules:

* Each paragraph is filled so that no line is longer than 70 characters.
* Any line that begins with whitespace is not filled.
* A blank line separates paragraphs.

So the solution was add a space before the text of any line you don't
want to have carriage returns stripped, like:

line 1
line 2
line 3

Got it sorted :-)

Thanks again.

David Law