[Mailman-Users] max emails exceeded

[Dawn Kolb]

 I don't know if this issue has been brought up before, but I am new
to the listserv so.....

I run an online chat forum with Mailman, and several people are not
getting all the messages.  Occasionally I get a message saying "Domain
<omitted> has exceeded the max emails per hour.  Message discarded."
What does that mean?  What is the maximum number of emails per hour
permitted?

 I have looked through the FAQs but nothing there could help me.
Everyone on the list signed up themselves, and each have written
something in the last few days so nobody is notifying their ISP that
it is spam.  I have told everyone to search their spam folders just in
case, and they do that now as well.

Any ideas would be greatly appreciated.

Dawn Kolb
dawn.kolb at gmail.com