Vendors are scrambling to develop better software, but small Capitol Hill offices don't always have the staff with the right technical skills to make a smooth or quick transition. In general, the same rules that apply to snail mail apply to e-mail. People should write to members from their district and state. Writers must include a snail mail address so the congressional office can identify voters. Such a label helps the office direct the mail to the right staff member.
Congressional offices are obvious targets for blanket e-mail.
Unidentifiable e-mail is often erased or ignored. No one has time to sort through all of it looking for a constituent's message. E-mailers must have reasonable expectations. The problem is the same at agencies, where routine correspondence is often read by several different people before it is sent. Eventually, the Hill will do a better job with e-mail.