[Mailman-Users] Additional Features ??

[AE]

Greetings:

I have been using Mailman for the better part of a year now and have 
completely replaced Majordomo.  There are a couple issues that as a web 
presence provider and hosting company we have run across.

Customers who have lists with us have mentioned that it is difficult to 
unsubscribe a user at a specific domain that they know is causing problems, 
but they don't know their e-mail address.  For a list with approximately 
25,000 members, they would like to be able to view the subscribers on the 
Membership management page sorted by the domain name of each member as 
opposed to alphabetical order by username at domain.

A second message received today was to ask if there was a way to block any 
message that contains an attachment.  The best thing I could tell him, was 
to set the "Maximum length in Kb of a message body. Use 0 for no limit." 
back to 40 and hope that the attachment is larger than 40K.  This is 
ovbiously not a great solution.

Anyone think that these would be useful additional features?