<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
+ <li>dest - Invoice destination: If numeric, a <a href="#svc_acct">svcnum</a>, if string, a literal email address, or `POST' to enable mailing (the default if no cust_main_invoice records exist)
<li><a name="cust_main_county">cust_main_county</a> - Tax rates
<ul>
<li>taxnum - primary key