+ <li><a name="cust_main_invoice">cust_main_invoice</a> - Invoice destinations for email invoices
+ <ul>
+ <li>destnum - primary key
+ <li>custnum - <a href="#cust_main">customer</a>
+ <li>dest - Invoice destination: <a href="#svc_acct">svcnum</a> if numeric, literal email address if string