I think I've found a bug in the MailMan Widget:
there must not exist an GNU mailman description! Otherwise the drop down list where you can selcet the mailinglist you want to use, will stay empty! I tried this with several gnu mailman installations and it's allways the same.
The GNU mailman field which has to be empty is: "description (general)"
I tried it with GNU mailman 2.1.9
Thanks for this very usefull widget! It would be great if use of description would work properly!
Kind regards, wporso