Can't delete message from Outbox

  • Thread starter Thread starter Barry Brown
  • Start date Start date
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Barry Brown

Hi, I have Outlook 2003 and usually after sending an email with an
attachment outlook won't send it and then I am unable to delete it from the
outbox. The only solution I have found so far is to uninstall reinstall.
Would love some help
 
Try putting Outlook into offline mode before trying to delete the message.
(File | Work Offline)
 
Thanks. That helps with deleting but I still can't send with attachments at
all.
 
Broadband or dialup? If broadband connection, are you using a cable/dsl
router (eg. Linksys) that lets you share a single IP address with many
machines?
 
I have Broadband with a D-Link router.
I have three PC's and a laptop using the same IP address.
 
Try dropping the MTU on the problematic PC since Linksys/D-Link routers
don't pass information back to windows that the packet is too big. Steps
vary on how to do this for each operating system, so I can't give you clear
steps on how to do since I'm not sure what o/s you are using.
 
I haven't given you much info to go on have I, sorry
I am using XP on the two main PC's. The other PC varies as it is usually one
I am trying to fix. The Laptop is running 98 at the moment.
The aproblem occurs on my main PC which is running Outlook 2003, the others
are all Outlook 2000

Hope this is enough, and thanks for taking the trouble to help
 
For the XP machines, open regedit and go to:

HKLM\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\Interfaces

under this location you will find some folders with long alpha-numeric
names. Look through each folder and find the one that shows your current IP
address. Once you find the correct folder, create a new DWORD value named
MTU. Set the value to 1492 (decimal). Exit regedit and reboot. Try
sending a message with an attachment. If it still hangs, drop the MTU to
1460 (decimal)


For Windows 98,
HKLM\System\CurrentControlSet\Services\Class\NetTrans

Under this key will be numeric folders. You will have to scan each to find
the right one for TCP/IP. You will add a string value of MAXMTU if it
doesn't exist. Start with 1492. If sending a message with an attachment
fails, drop to 1460.
 
Hi again sorry to be so much trouble, but did what you suggested and even
dropped to 1428 but still no success. Should I keep dropping number till it
works
 
You shouldn't have to drop past 1460 for most standard ethernet DSL/Cable
connections. (Satellite and others is an unknown for me.)

On your Windows XP box, if you go to:

HKLM\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters

Do you have the following values listed?

EnablePMTUDiscovery
EnablePMTUBHDetect


Do you have another cable/dsl router you can test with? (I'm hoping that
your d-link router is on its way out.)

/neo

ps - i'm hoping the machine you are having the "send attachment" issue is on
windows xp. if not, i have my work cut out since i don't remember much
about 98.
 
Neither

EnablePMTUDiscovery or
EnablePMTUBHDetect

are listed under any of the alpha-numeric folders, and yes it is on XP

I don't have another cable/dsl router you can test with but may be able to
get one this afternoon
 
Try setting EnablePMTUBHDetect to 1 and then reboot. EnablePMTUBHDetect is
a DWORD value.

/neo

ps - this value is not set under the long alpha numeric folder names. This
value is set at:

HKLM\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters
 
Ther was a DWORD value EnablePMTUBHDiscovery with a value of (1) already
assigned.
I am assuming that is the one to which you were refering


neo said:
Try setting EnablePMTUBHDetect to 1 and then reboot. EnablePMTUBHDetect is
a DWORD value.

/neo

ps - this value is not set under the long alpha numeric folder names. This
value is set at:

HKLM\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters

Barry Brown said:
Neither

EnablePMTUDiscovery or
EnablePMTUBHDetect

are listed under any of the alpha-numeric folders, and yes it is on XP

I don't have another cable/dsl router you can test with but may be able to
get one this afternoon



is
Click to expand...
each
to
Click to expand...
if
it
Click to expand...
using
a
cable/dsl
router (eg. Linksys) that lets you share a single IP address
with
many
machines?

Thanks. That helps with deleting but I still can't send with
attachments
at
all.


"neo [mvp outlook]" <[email protected]>
Click to expand...
wrote
in
message
Try putting Outlook into offline mode before trying to
delete
the
message.
(File | Work Offline)

Hi, I have Outlook 2003 and usually after sending an email
with
an
attachment outlook won't send it and then I am
Click to expand...
Click to expand...
unable
to
Click to expand...
Click to expand...
 
The simplist thing for me to do is go back to an earlier version. At least I
know they work.
Thanks anyway
Barry
neo said:
I don't think that is a valid value for Microsoft's implementation of
TCP/IP. (or at least I can verify via
http://support.microsoft.com/default.aspx?scid=kb;en-us;314053)

Barry Brown said:
Ther was a DWORD value EnablePMTUBHDiscovery with a value of (1) already
assigned.
I am assuming that is the one to which you were refering


EnablePMTUBHDetect
is able hoping
that MAXMTU
if
Click to expand...
it
is
usually
one
I am trying to fix. The Laptop is running 98 at the moment.
The aproblem occurs on my main PC which is running Outlook 2003,
the
others
are all Outlook 2000

Hope this is enough, and thanks for taking the trouble to help


message
Try dropping the MTU on the problematic PC since Linksys/D-Link
routers
don't pass information back to windows that the packet is too
big.
Steps
vary on how to do this for each operating system, so I can't
give
you
clear
steps on how to do since I'm not sure what o/s you are using.

I have Broadband with a D-Link router.
I have three PC's and a laptop using the same IP address.

"neo [mvp outlook]" <[email protected]>
Click to expand...
wrote
in
message
Broadband or dialup? If broadband connection, are you using
a
cable/dsl
router (eg. Linksys) that lets you share a single IP address
with
many
machines?

Thanks. That helps with deleting but I still can't send
with
attachments
at
all.


in
message
Try putting Outlook into offline mode before
Click to expand...
Click to expand...
trying
to
Click to expand...
sending
an
Click to expand...
Click to expand...
 
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