A link like [this](mailto:foo@bar.org) will not be converted correctly to a mailto link in the rss/atom feeds, but an absolute link instead. See e.g. the logitech post on http://madduck.net/blog/feeds/planet-lca2008/index.rss
fixed --Joey
This still happens for auto-generated mailto: links that are garbled by Markdown, so that
<matthias@rampke.de>
is turned into
<a href="mailto:matthias@rampke.de">matthias@rampke.de</a>
for HTML, but
<a href="http://rampke.de/m&#97;&#105;&#x6C;t&#111;:&#109;&#x61;&#116;&#x74;&#x68;&#105;a&#x73;&#64;&#x72;&#x61;&#109;&#x70;&#x6B;&#101;&#46;&#100;&#x65;">&#109;&#x61;&#116;&#x74;&#x68;&#105;a&#x73;&#64;&#x72;&#x61;&#109;&#x70;&#x6B;&#101;&#46;&#100;&#x65;</a></p>
for Atom and RSS.
This garbling is provably pointless. Proof: For $1000 I will take off my white hat, put on my black hat, and implement support for it in any spammer's email address extraction tool. Money will be donated to a spam-fighting organisation of my choice.
So, in leu of money, it seems best to find a way to disable it in markdown.
Anyway, I've fixed this, at the expense of additional total worldwide power usage, etc. --Joey