As IBM Lotus Domino 8.5 now ships with the dojo Toolkit included you may have seen problems using your site using Internet Explorer 6. In my case, the website rendered just fine with Firefox and IE7 but in IE6 all I got was an empty page and an error message "operation aborted".
I found this thread and found it quite useful. Basically it recommends to close your base href tag in the page header. I found that moving the base href tag after the script tag is also a workaround for this problem.

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If your users are using Lotus iNotes to access their email from PCs located at insecure network locations you surely want to encrypt at least username and password.This can be done by checking the database property "require SSL connection" on domcfg.nsf which holds (by default) your login form. This is all fine but once authenticated your users may change the URL from https back to http for whatever reason. I tried to prevent that by checking the same property "require ssl connection" on the users maildatabase but ...

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