Summit Internet Services is a small domain host provider in the Mesa/Gilbert area of the Phoenix Metro Area...
Our main focus is providing web/mail hosting for small businesses seeking a host that strives to reduce the daily influx of SPAM. To that end we have fairly aggressive filters installed to combat this scourge. However we do err on the side of allowing some SPAM through (false-negative) so as to minimize the impact that might be seen from a "false-positive" (a valid email marked as SPAM).