When opening the Sent Items folder in Outlook 2007, I get the error message:
The messaging interface has returned an unknown erro. If the problem
persists, restart Outlook.
I have done this, as well as running the scanpst program, which doesn't seem
to fix the problem either. Any ideas? I can't find any solutions...

Have you tried opening Outlook with the /resetnavpane command?

Start > Run > outlook.exe /resetnavpane (note the space between outlook.exe
and /resetnavpane)

If you're running Vista the directions are Start > Start Search >
outlook.exe /resetnavpane



"Andrew" <(E-Mail Removed)> wrote in message
news:A92B9EA5-9939-42DB-BEA9-(E-Mail Removed)...
> When opening the Sent Items folder in Outlook 2007, I get the error
message:
> The messaging interface has returned an unknown erro. If the problem
> persists, restart Outlook.
> I have done this, as well as running the scanpst program, which doesn't
seem
> to fix the problem either. Any ideas? I can't find any solutions...

"Andrew" <(E-Mail Removed)> wrote in message
news:A92B9EA5-9939-42DB-BEA9-(E-Mail Removed)...

> When opening the Sent Items folder in Outlook 2007, I get the error message:
> The messaging interface has returned an unknown erro. If the problem
> persists, restart Outlook.
> I have done this, as well as running the scanpst program, which doesn't seem
> to fix the problem either. Any ideas? I can't find any solutions...

If Kathleen's suggestion doesn't pan out, try the /cleanviews command switch.
--
Brian Tillman [MVP-Outlook]

I tried both Kathleen's suggestion and your's and neither one worked. I did
find out something odd... If I close out the error message and do a search by
the user's Last Name in the Sent folder, the Sent Items will appear. If you
try scrolling down the list they'll disappear. I can, however delete the
messages and there was over 3000 messages in the Sent Items. There is one
message that won't delete and I suspect that it may have something to do with
the problem. It doesn't have an attachment. I just can't delete it.

Thanks,

Andrew

"Brian Tillman [MVP - Outlook]" wrote:

> "Andrew" <(E-Mail Removed)> wrote in message
> news:A92B9EA5-9939-42DB-BEA9-(E-Mail Removed)...
>
> > When opening the Sent Items folder in Outlook 2007, I get the error message:
> > The messaging interface has returned an unknown erro. If the problem
> > persists, restart Outlook.
> > I have done this, as well as running the scanpst program, which doesn't seem
> > to fix the problem either. Any ideas? I can't find any solutions...
>
> If Kathleen's suggestion doesn't pan out, try the /cleanviews command switch.
> --
> Brian Tillman [MVP-Outlook]
>
> .
>

"Andrew" <(E-Mail Removed)> wrote in message
news:04F32564-3151-45D0-8CF6-(E-Mail Removed)...

>I tried both Kathleen's suggestion and your's and neither one worked. I did
> find out something odd... If I close out the error message and do a search
> by
> the user's Last Name in the Sent folder, the Sent Items will appear. If you
> try scrolling down the list they'll disappear. I can, however delete the
> messages and there was over 3000 messages in the Sent Items. There is one
> message that won't delete and I suspect that it may have something to do
> with
> the problem. It doesn't have an attachment. I just can't delete it.

Not even if you hold Shift when deleting?

If thie were to happen to me, I'd start with a new PST, make it the default
PST, and move everything except the bad message from the old to the new,
finally closing the old PST and, after closing Outlook, deleting it.
--
Brian Tillman [MVP-Outlook]