In my mind the two programs have distinctly different functions:
- Yarn is an "archival" mail/news reader. That means it filters
_incoming_ articles to the appropriate database structures, and
keeps those articles around as specified. Yarn does not support
such "added filtering" for _outgoing_ messages.
- Yarn does not depend upon an on-line connection; in fact, all
outgoing articles are ACTUALLY sent out after Yarn is closed,
by external programs such as Souper. [Neither does Yarn allow
one to "compose" the outgoing email -- one has to call upon an
external program as specified by the editor= line in Yarn's
configuration file.]
- I don't use Internet Explorer myself, but it is aimed at ON-LINE
accessing of web pages (though you can look at local files as
well). The email function supported by web browsers typically
does an "immediate" send of any message that is created.
- There seems little that Yarn can do for .html mailto: that can't
be done by built-in web browser facilities themselves. In fact,
web pages often supply "forms" to be interpreted by the browser,
to allow greater control of the information gathered than would
be possible were an email client to be invoked instead.
mikus