When I was in the 900 biz we would send out hardcore mags to people who called our 900 numbers (with more 900 number advertising, of course
). We never had a problem as long as we removed them when they requested it. We DID use a mail drop in San Francisco since it was considered more "porn friendly" and we supposedly had a prior relationship with the people we mailed to.
We had hundreds of complaints a month (Junior would call from granny's line, and granny would get the mail) but nothing was ever done if we removed upon request.
HOWEVER, your best bet is to ask your attorney.
