You'll need to collect the email addresses first and then do a mail merge.
If all messages are in the same folder you can do an Export to Excel and map
the fields you need (most likely "email address" and "Display name" of the
emails). You can then use the Excel sheet as the data source for your mail
merge.
--
Robert Sparnaaij [MVP-Outlook]
Coauthor, Configuring Microsoft Outlook 2003
http://www.howto-outlook.com/
Outlook FAQ, HowTo, Downloads, Add-Ins and more
http://www.msoutlook.info/
Real World Questions, Real World Answers
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"andy" <(E-Mail Removed)> wrote in message
news:CDB80CA5-00CF-4E05-92B9-(E-Mail Removed)...
> We get a lots of replies to advertisiements and once we have completed our
> process I would like to write one email thanking people and send it to all
> the emails approx 100 at the same time.
>
> Do I have to create a distribution list or is there a simpler way. i
> tried
> "select all" but there is no "reply to all" feature I can see.
>
> Thanks