I'm not quite sure what you mean by an inline tag. Do you mean attributes? for example:
Code:
<node attribute="somevalue" />
I would be surprised that any SOAP API would convert attributes into content because it would make something like this into nonsense:
Code:
<node attribute="somevalue">text content</node>
Zimbra uses attributes often as key values so you will often see large sets of nodes that look like:
Code:
<attr name="key">value</attr>