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The messaging interface has returned an unknow error. If the problem persists, restart Outlook.

db
Copper Contributor
Posts: 43
Country: Belgium

The messaging interface has returned an unknow error. If the problem persists, restart Outlook.

I have Act! premium 2010 and Outlook 2003 SP3 with Windows XP.

When I clik on email address in Act!, I have this error message "The messaging interface has returned an unknow error. If the problem persists, restart Outlook." I have another PC with the same account Outlook and Act!; and I havent error.

Sometimes i must remove the address book of act, and it solve. But not always.

Anyone has some idea?

 

thanks

Platinum Elite Contributor
Posts: 6,537
Country: USA

Re: The messaging interface has returned an unknow error. If the problem persists, restart Outlook.

This can be caused by your Outlook personal file (.pst file) being too large...the size limit is 2 GB. You can attempt to fix this by archiving or deleting old messages from your mailbox folders. This can also be caused by a damaged .pst file, in which case you may need to create a new Outlook profile.

Greig Hollister

Note: Effective 6/1/13, Sage no longers provides support for the Act! software. This is now provided by Swiftpage.