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Number of CC'd emails sent out at the same time

Posted on 2008-09-29
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Last Modified: 2010-04-07
We have an Exchange 2003 email server using a Dell 2850 server 8 gig ram.

 How many people can be CC'd in a single email at the same time without causing significant loss of LAN or Internet performance?
We have a Bulk Emailer; however, the politics of a few are trying to say 500 cc'd emails do nothing to the network performance.  I know this is false.  A short time after the emails are sent some as little as 300 receipients in a single email chokes the entire network.

Can anyone with experience in this area give me a number for the above and also a number per hour of the above that can be sent out. (Example of answer needed: Email with 25 receipents 3 time per hour.)

What I am looking for is a policy with some techinical explaination to counter "need" to send bulk email through Exchange 2003 via Outlook.

Thanks in Advance
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Question by:hhcharlieb
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5 Comments
 
LVL 32

Expert Comment

by:gupnit
ID: 22598491
Hi,
500 Mail are they going to be sent within same Server or to some other location or outside.
If within same Server - voila nothing, if Mail size is 10KB, then thats it
If within same organization but different servers, well for each server  10KB size will be transferred.
Now if the mail is going outside, then 10KB will become 50MB, well I do not think internally anything should be affected by 50MB data, but yes Internet Link will be slow for sometime.
Also 500 mails at one go, chances are you will end up in Junk/Spam of the destination domains
Hope this made sense :-), let me know
Thanks
Nitin
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Author Comment

by:hhcharlieb
ID: 22598639
Hi Nitin,
Thanks for the quick response.
No they are not Intranet they are INTERNET.  That is the problem.   The Exchange parameters are set so it tries for two days and then gives up.  The SPAM blocking it not a big deal We are white listed with the IPS's that block high volumns.  
 
The real problem is the actual mechanics of Exchange and it's ability to deal with sending email to other emails outside our domain using a single email and CCing several hundred at a time.
 
Have you had this experience yourself?  If so, please share your experience.
 
Thanks
 
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LVL 32

Expert Comment

by:gupnit
ID: 22598740
Hi
See you got to treat it as 500 mails only past the SMTP Virtual Server.
So if a OUtlook client sends a mail, cool, it goes as a 30KB (assuming that is the size) upto Exchange server and then upto SMTP Virtual server it remains the same 30KB.
Now at Queue the mails will get divided for the domains. Now I do not see Internal network getting affected since SMTP Virtual server will either push out mails directly or via a Smart Host.
Only the Internet Link would get affected since 30kb * 500 = 150MB (if my calculation is right) and well it would finally depend upon your Link bandwidth. Also how that link is being utilized, is it dedicated for Mails, or being shared with host of other applicaitons.
Hope this made sense, do let me know
Thanks
Nitin
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Author Comment

by:hhcharlieb
ID: 22599206
Nitin,
Have you yourself sent out 1000 emails in one blast from Exchange 2003?
 
Can you share your actual experience with the issue?
 
Thanks
 
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LVL 32

Accepted Solution

by:
gupnit earned 500 total points
ID: 22599312
Hi,
Ok, let me tell you Exchange/Outlook is just not the solution for bulk emailing. It is just not designed for it. Also, in case of your IP getting blacklisted due to bulk mailing you will cause yourseld lot of harm. Also yes Exchange will take its own sweet time, I do agree.
I would recommened  a Bulk Mailing solution for you, that you can use with its own IP to send out mail this will also help you avoid your Exchange Server/SMArt Host IP getting blacklisted.
Thanks
Nitin
 
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