Every CyberTeacher needs a powerful email application and needs to know how to use it. The application needs to be able to filter messages and do automated replies. It should also archive thousands of messages, keep phone numbers and and lots of miscellaneous information. I strongly recommend that you purchase and learn to use Eudora Pro by Qualcomm. You will need an email account on some server.
Many email systems provided by school districts are inadequate.
Network specialists are in very high demand and schools seldom can pay competitive salaries. Your ISP can provide you an account and there are lots of companies that can supply your email needs. Yahoo keeps a nice list of email providers .