Could not complete the operation. One or more parameter values are not valid. Outlook 2010

Jimi Hendrix's address book

I ran into an odd error when trying to send email from our newly configured Office 365 hosted exchange.  When sending email to people who were already in my auto complete address book I would receive the message “Can not complete the operation” a fellow user also recieved the error “Could not complete the operation. One or more parameter values are not valid.”

It turns out that this is a corruption in the frequently used email address cache and can be cured by deleting the cache by going to File/Tools/Options/Mail and choosing clear autocomplete

About Andrew Denner

Andrew is the owner of Denner Consulting LLC, a web design and computer consulting company. In his spare time he enjoys writing here, spending time with his new wife at their home in Polk City and tinkering with various computer things.
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