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have you run scan disk lately? &nbsp;Most likely the file is corrupt. &nbsp;You probably know it's the n2k file. &nbsp;You might have to delete it.
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Outlook 2010 doesn't use the n2k file
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I'll update my brain on that one :)
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Hi,<br />
Thanks, will look at this
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When sending to some email addresses in my auto-complete list I get the following error and it will not send.<br />
&quot;Could not complete the operation. One or more parameter values are not valid'&quot;<br />
<br />
When you open up a new email and type the first letter of the recipient you see their address pop up. If you delete the address when it pops up and manually type it in, then it will send fine.<br />
<br />
If you reply to an email from them then that works fine too.<br />
<br />
I know how to clear the cache but do not want to do that as most of the other addresses work just fine.<br />
<br />
Does anyone know what would have caused this to happen?<br />
<br />
Thanks<br />
Andrew
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When sending to some email addresses in my auto-complete list I get the following error and it will not send.
"Could not complete the operation. One or more parameter values are not valid'"

When you open up a new email and type the first letter of the recipient you see their address pop up. If you delete the address when it pops up and manually type it in, then it will send fine.

If you reply to an email from them then that works fine too.

I know how to clear the cache but do not want to do that as most of the other addresses work just fine.

Does anyone know what would have caused this to happen?

Thanks
Andrew

have you run scan disk lately?  Most likely the file is corrupt.  You probably know it&#39;s the n2k file.  You might have to delete it.

Outlook 2010 doesn&#39;t use the n2k file

Outlook 2010 auto complete cache corrupt

When sending to some email addresses in my auto-complete list I get the following error and it will not send.
&quot;Could not complete the operation. One or more parameter values are not valid&#39;&quot;

When you open up a new email and type the first letter of the recipient you see their address pop up. If you delete the address when it pops up and manually type it in, then it will send fine.

If you reply to an email from them then that works fine too.

I know how to clear the cache but do not want to do that as most of the other addresses work just fine.

Does anyone know what would have caused this to happen?

Thanks
Andrew

Microsoft Outlook is a personal information manager from Microsoft, available as a part of the Microsoft Office suite. Although often used mainly as an email application, it also includes a calendar, task manager, contact manager, note-taker, journal, and web browser.

Outlook

An email client, email reader or more formally mail user agent (MUA) is a computer program in the category of groupware environments used to access and manage a user's email. A web application that provides message management, composition, and reception functions may internally act as an email client; as a whole, it is commonly referred to as webmail. Likewise, email client may be referred to a piece of computer hardware or software whose primary or most visible role is to work as an email client. Email clients can also have other systems, like calendars, notes and contact managers.