Re: CDO and Exchange Timeout Problem

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From: Darin Roulston [MSFT] (darinr_at_online.microsoft.com)
Date: 04/09/04 

Date: Fri, 9 Apr 2004 13:37:44 -0500

If the code is the same for sending messages that succeed and those that
fail then it sounds like it is failing somewhere in the smtp conversation
between the two servers. To find more information on where it is failing I
would get a network monitor trace between the two servers. You can then
filter it on SMTP traffic and see at what point it's failing. If it always
fails at the same point then you'll know where to concentrate. If it's
random then you may be having network problems. Is your IIS configured to
send to a smarthost (the Exchange Server)? If so is it sending all mail to
Exchange or just certain domains? Anything else in your configuration that
may be a clue? Does the same message to the same recipient always fail or
sometimes works and sometimes doesn't. 

-- 
Darin Roulston
Microsoft PSS
Please do not send e-mail directly to this alias. This alias is for
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This posting is provided "AS IS" with no warranties, and confers no rights
"Nicolas Dilain" <nicolas.dilain@businessinteractif.fr> wrote in message
news:4073f032$0$22849$626a14ce@news.free.fr...
> Hi all,
> we're experiencing strange connection problem between our web and smtp
> server. The error message returned is :
>
> "The message could not be sent to the SMTP server. The transport error
code
> was 0x800ccc6a. The server response was 451 Timeout waiting for client
input
> ".
>
> However it does'nt happen everytime. We are having like 50% of rejected
> mails.
> The language is ASP using CDO object and the smtp server is an exchange.
>
> Thanks a lot guys.
> Nicolas
>
>

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