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New Message on BDOTNET
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From: LoguK
Message 3 in Discussion
There are 2 ways you can do this 1. All Mail Servers generate NDR[Non-Delivery Report]
whenever the server is unable to send the mail out.
Exchange also does this, and you have an option to send a copy to
administrator/postmaster or to anyother person.
you can set this under Exchange Manager->Servers->
{default}SMTP Server->Properties->Messages[Tab] Now all the NDR's generated at one
mailbox, now you can query this mailbox to get all the NDR's at one shot,
without having to iterate thro' all the mailboxes. 2. You need to individually
iterate on all the mailboxes.
This is not advisable,
a. because by default, nobody has permissions to see other's inbox on exchange
server[even admin, unless configured]
this implies, you need a exchange admin user to login to each mail box to get the
mails.
b. If the users are using POP, and they don't store a copy on server, there is no way
you can get this info. sometimes you may miss, Now, you need to adapt to some data
accessing methods to talk to the exchange server,
this highly depends on where your Windows Service is running, if your service runs on
the same box
as that of the exchange server, you are lucky, you can use CDO, ExOleDB[Select * from
inbox ;-)]
but, if your service is running on other machines, you are left with only one option
WEBDAV. but believe it or not, WebDAV is the cool and easiest thing you can do if
you learn it well.
[Note: webDAV can also be used if the service is on the same box] all you have to do
is open an XMLHTTP Connection and send a formatted XML DOM, and the response you get
from exchange is your answwer to your
query again in XMLDOM. This leaves us to n number of implemenration. you might
need to get your hands dirty on Exchange SDK... check at msdn.microsoft.com/exchange
-- Logu
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