What is the best way to create a questionnaire that can be emailed to people who would then open it, repond to the questions and email it straight back?

Is there a simple way that could be done in Outlook?

Would the answers to the questions be fixed, i.e. yes or no or are some questions answered with sentences?

I know you can do pdf questionnaires, but no real easy way by email that I know of. You can just ask people to answer inline, but if you want to restrict the options to make filtering easier, I don't know.

i haven't done it, but you can create a form in acrobat pro with a button to email the response to a specfic address as an xml file

If you want to use a web based survey, you could try SurveyMonkey. You can mail the link out and people complete the questionnaire online. SurveyMonkey then present the results in different formats. Neat stuff.

How about Outlook forms? Not entirely sure if it would work, but might be worth a few seconds of googling time!

Would the answers to the questions be fixed, i.e. yes or no or are some questions answered with sentences?

I know you can do pdf questionnaires, but no real easy way by email that I know of. You can just ask people to answer inline, but if you want to restrict the options to make filtering easier, I don't know.

Questions would be responed to by either selecting a score (1 to 5) or a yes/no response.

I have looked at the surveymonkey site before and it does look quite good, just not sure if my client will pay for it at present.