Server Sizing for 50,000 mailboxes

Ramprasad A Padmanabhan ramprasad at
Mon Jul 28 04:10:55 EDT 2003

Hello all,

  I have a basic question on sizing. How does one decide on the sizing

Now My client wants a sizing for 50,000 mailboxes. Say I use
Sendmail/Cyrus and expect  50 mails/s then What will be the server

I have a three server architecture for 10000 mailboxes  one SMTP one
IMAP and the third is a virus scanner and it runs fine

So for 50,000 mailboxes will I require 5 x 3 = 15 servers 
Now that does not look sensible



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