YPOPs! is released under the GPL Version 2.

THIS SOFTWARE IS PROVIDED "AS IS" BY THE AUTHORS AND 
INDEPENDENT CONTRIBUTORS AND ANY EXPRESS OR IMPLIED 
WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A 
PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 
AUTHOR OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE 
GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR 
BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 
OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR 
TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY 
WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 
THE POSSIBILITY OF SUCH DAMAGE.

As far as we know, YPOPs! does not violate the Terms of Service
of Yahoo! Mail. But we are not lawyers. As far our interpretation is
concerned, The ToS is between Yahoo and the end user of Yahoo (i.e., you)
and not any intermediaries like YPOPs!. But we are not lawyers. 
If you believe that YPOPs! goes against the ToS of Yahoo Mail, 
please DO NOT USE YPOPs!

This software is an independent development by the authors and
is in no way connected to their respective employers.
