[NTLUG:Discuss] I need help with Thunderbird Usenet filtering

[John K. Taber]

On Mon, 2007-08-13 at 11:18 -0500, Robert Citek wrote:
> On 08/13/2007 10:58 AM, Stuart Johnston wrote:
> > John K. Taber wrote:
> >> A newsgroup I follow is under sporge flooding. I use Thunderbird to
> >> follow it, but Thunderbird's message filtering doesn't seem to have all
> >> the header fields I need to avoid the sporges. Thunderbird filter
> >> provides only for Subject, From, and Date.
> > 
> > You should be able to use any header in a Thunderbird filter with the 
> > 'Customize' option on the header drop down.
> 
> Yes, that is how to do it.
> 
> Tools > Message Filters > New,  then click on the drop down menu and
> choose Customize.  Once a new header is entered, it will appear in the
> drop down menu from then on.
> 
> Let us know if that works for you.
> 
> Regards,
> - Robert

Alas, no. Perhaps I need to upgrade Thunderbird? I'm using version
1.5.0.12.

Clicking the drop down menu on the filter window does not reveal a
"customize".