A few more things to add:
1) This (and some more) information is available in the sandbox at
2) If you're attaching an image you need to use BASE64 encoding to get it to
3) Some symbols won't show unless you specify content-type of your html as
4) The notes client doesn't support background colours or images for html
tables. It also does not support the <link rel> tag.
5) If a user uses the iNotes web client to open the email, it will strip out
<html>,<head>, <script> and <body> tags (and I think everything within
them). This means that the only way to get css to work is to put it inline
with the page content rather than in the <head> tag.
6) <BASE HREF> tags work in the notes client when added to the head content.
However in iNotes, whilst they change the base url of links in the email, they
also change the base url of everything else too, so inline images don't work!
This seems to be a bug with the iNotes client, and it appears from the support
database that Lotus have no plans to address it.
However, if you can see past these small annoyances, I'm sure you'll agree that
this is a valuable addition to tools that can be used to send great looking
email messages to users.