The .SRS file under you e-mail profile could be corrupt. Since you don't
mention what operating system or version of Outlook, the best example I can
give is if using Outlook 2007 under Windows 7, you would find the file at:
c:\Users\<Userid>\AppData\Roaming\Microsoft\Outlook
What you would do is close Microsoft Outlook and then delete the
<outlookprofilename>.srs and then start outlook. You will need to recreate
any custom send/receive settings, but hopefully your issue is resolved.
"Roland Meyer" <Roland
(E-Mail Removed)> wrote in message
news:5519D177-BEED-4A56-9389-(E-Mail Removed)...
> Hi,
> when sending email messages, I get following error message:
>
> "Could not complete the operation. One ore more parameter values are not
> valid."
>
> Note: everything worked fine until now suddenly. Any help?
>
> Roland Meyer