Ubuntu List vs Gmail - This message may not have been sent by:

[Tom H]

On Fri, Jul 15, 2011 at 7:23 PM, ANDY <sirald66 at gmail.com> wrote:
>
> Has anyone noticed on the list that seemingly everyone sending and reading
> from Gmail are getting a bold yellow banner on their messages stating, "This
> message may not have been sent by: " [user at gmail.com] "Learn More  Report
> phishing"?

Yes, it's been like this for a while.

Gmail doesn't seem to recognize that it's a post to a list.

it doesn't happen with my other lists so it's an Ubuntu "problem."