Same thing happened to me today too. My email files are large, but nowhere
near where they have been in the past, yet today, I started getting the
"System" email message with the "452 Insufficient system storage". I created
a new Outlook file and closed all other and am still getting it. Don't
undertsand it and can't find and results in the knowledgebase search.
H E L P me somebody....P L E A S E....I'm going on a 2 week business later
this evening and seriously don't need this issue.
When you get an email message with this warning, it means it is coming from
your ISP and not from Outlook. Login to your web based mailbox of your ISP
and check your storage limits there.

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Robert Sparnaaij [MVP-Outlook]
Coauthor, Configuring Microsoft Outlook 2003
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Real World Questions, Real World Answers
-----
> Same thing happened to me today too. My email files are large, but nowhere
> near where they have been in the past, yet today, I started getting the
[quoted text clipped - 22 lines]
>>
>> Pamala
Timoco - 26 Aug 2007 21:32 GMT
Thanks for your suggestion, but i don't think that's correct. I used a
different PC a sent email just fine through the same ISP from all the same
email accounts.
The error message is coming from within Outlook.
having received this same message with a new PST file, and after ensuring my
space at the ISP was clean, and testing via another PC, I concluded it has to
be local to my laptop's environment.
I proceeded to compress all of Outlook's PST files that I have via the
Outlook menu "File/Data File Management". I selceted each file one at a time,
then chose "settings" which then opens a dialogue box where the "Compress"
function is.
This seemed to cure the problem, at least for now. I tested by resending all
the previous test messages, and they all went lickety split and arrived with
no issues!!
Tim.
> When you get an email message with this warning, it means it is coming from
> your ISP and not from Outlook. Login to your web based mailbox of your ISP
[quoted text clipped - 26 lines]
> >>
> >> Pamala
Timoco - 26 Aug 2007 21:58 GMT
UH OH...spoke too soon. two messages got through asap but the third test
bombed and created the instantaneous error email from "System Administrator"
again.
Quite bizarre since the same email from my backup PC went rhough just fine !!
Bottom line....it's still a mystery, but looks more and more like it's
Outlook on the laptop that's generating the message
Tim
> Thanks for your suggestion, but i don't think that's correct. I used a
> different PC a sent email just fine through the same ISP from all the same
[quoted text clipped - 45 lines]
> > >>
> > >> Pamala
a veda - 27 Aug 2007 04:45 GMT
i am hAVING the same problem today on TELUS.
when i phoned the unknowledgable person told me it was my computer. it is obviously a telus problem but they won't admit it.
it will probably be fixed by tomorrow when someone wakes up.
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PureEvil - 27 Aug 2007 09:38 GMT
I tried compacting as you suggested Timoco, and the first message went, but
subsequent messages did not. I also deleted about 1000 emails from various
folders ie Sent, Deleted etc again, two messages went then the error message
returned. But, if I use Telus' webmail on the internet I can send.
> i am hAVING the same problem today on TELUS.
>
[quoted text clipped - 6 lines]
> EggHeadCafe - .NET Developer Portal of Choice
> http://www.eggheadcafe.com
a veda - 27 Aug 2007 12:22 GMT
Finally got someone at telus who knew something.
My problem was that I had a specific servedr at Telus specified (eg. 199.5nn. etc)
so i changed it to a general one
smtp.telus.net
this means they can change their servers without us having to change ours all the time.
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