why not use Microsoft Word?
When you modify the signature using Microsoft Word, code that looked
like this:
<div style="font-size: 0.698em; line-height: 1.2; color: gray;
position: relative; top: -0.2em; display: block;">
Madison, WI 53717</div>
turns into something that looks like this:
<st1:place><st1:City><span
style="font-family: "Arial Narrow"; color: gray;">Madison</span></st1:City><span
style="font-family: "Arial Narrow"; color: gray;">, </span><st1:State><span
style="font-family: "Arial Narrow"; color: gray;">WI</span></st1:State><span
style="font-family: "Arial Narrow"; color: gray;"> </span><st1:PostalCode><span
style="font-family: "Arial Narrow"; color: gray;">53717</span></st1:PostalCode></st1:place>
Please note that I didn't even edit anything: this happened just by
opening the signature in Microsoft Word and saving it as a web page. Of
the many problems with this, I'll just point out one: the
<st1:place> tag is a special kind of
formatting called a "smart tag" that only Microsoft programs generate and
which is often blocked by spam filters or anti-virus programs --
even by companies that use Microsoft email programs.