[TYPO3] email address spam protection only works in regular text?

[Bing Du]

Hello everyone,

We're using Typo3 3.8. htmlArea RTE 1.1.3.

We have the following lines in the template.

config.spamProtectEmailAddresses = 2
config.spamProtectEmailAddresses_atSubst = @

In regular text content elements, email address, like foo at some.edu, can 
be converted to something like 
javascript:linkTo_UnCryptMailto('ajfdk;af') fine.  But the protection 
does not work in 'text w/ image', 'bullet list', 'table' and maybe some 
other types of content elements.  In the case of 'text w/ image', email 
links show up as <a ....class="mail" 
href="mailto:foo at some.edu">foo at some.edu</a> in page source.

If it's bullet list or table type, I can enter plain text only.  So 
besides the question about email address protection, here comes another 
question, any table extensions support some kind of RTE in table cell? 
We need to insert images, URLs ,etc.  How do people usually handle it?

Thank in advance for any ideas.

Bing