Re: Lotus Notes as a web proxy.
Using it as an interface to SMTP mail was also a nightmare. As an IBMer I had to run two mail user agents, Notes for corporate stuff and something that worked (Netscape Mail I think it was called then) for external collaboration. Some very senior people tried to use Notes for external email and boy did they get ridiculed for the formatting and other errors that the gateway introduced. That was mainly because Notes started out as a sort of X.400ish thing running over the Domino distributed database mechanism. Sadly, it never recovered from that difficult infancy and childhood.
Notes and Domino came from Iris which was owned by Lotus which was bought by IBM. For a while, Iris was a great place to visit, Silicon Valley in Massachussets, until the IBM Mind Control System discovered it and spoilt it.