Not directly, but a larger pst-file could slow down the performance of
Outlook.
How much it will affect you depends on your hardware but in general people
will not notice any slowdowns unless the pst-file grows larger as 5GB.
--
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
-----
"nobody" <(E-Mail Removed)> wrote in message
news:uCmYyF$(E-Mail Removed)...
> Does leaving attachments with many sent and received messages slow down
> Outlook 2007?
>
> I do have an archiving time set.
>
> regards,
>
> "nobody"
>