> Do you do the parsing of the MIME yourself or can you recommend a
> package/library that handles this well?

I did not try that because my expectation has been that the Groupwise
client (API) should contain such a method already, because when a
regular user is sending a plain text message, the client does perform
this conversion already. Therefor it would make sense to have this plain
text versionof the signature available by API, or at a least an API call
that converts the HTML signature intoa plain text signature.