you could do several things..
1) Allow members to decide if the want email or not. If the want it, you can have options on whether they want end of day setups or intraday setups. Then it's up to them to create rules to filter those emails out into a separate folder if they do not want it to "flood" their inbox. that's realtively easy to do and you could provided either instrcutions or a VBA script that they can do to configure such a rule and folder
2) Send your alerts to either a file system or database table (preferred). build a web page that is based on that database table, every time it refreshes, the new updates are shown. that's the easiest way imo.
btw, if you have only two alerts, why are they sending out so much email? is it possible your alerts keep firing once a signal is given. in other words, let's say you ahve an alert that recognizes a Bullish Engulfing pattern, once it fires the first alert, it should not fire again until the pattern is negated...