kbAlertz newsletters are published in two versions. Daily and Weekly Summary.
By default, you're signed up for Daily alertz. Sometimes this creates more e-mail then you expect, and a weekly summary is preferred.
To change your account to weekly summary only, login to your account with your e-mail and password. Then select Email Preferences under Account Info. From this screen you can select your Frequency. Again options are Daily & Weekly. You can select one or the other, or both.