开云体育

Duane,

I believe he would have to give an exact location of (link to) the
"offending" material before he could request a DMCA action. ... DMCA
gets abused a lot, but has very specific instructions for use.

The procedures are somewhat up to the hosting site to establish.
Groups.io's are specified in the TOS:
/static/tos

Of note is the requirement:

o a description of where the material that you claim is infringing
is located on the Service, with enough detail that we may find it
on the Service;

That's fairly non-specific and Groups.io could accept something as broad
as "messages from xxx in group yyy".

At the other extreme I've read it alleged that some services go so far
as to require a separate filing for each message.

The risk to the group owner is that:
"Groups.io may also at its sole discretion limit access to the Service
and/or terminate the memberships of any users who infringe any
intellectual property rights of others, whether or not there is any
repeat infringement."

But I think it unlikely Mark would take that stand in the case of transferred messages. I think that's an escape for much more serious cases.

Shal