Date: Fri, 18 Jun 2004 06:13:43 -0500 From: Martin McCormick <martin@dc.cis.okstate.edu> To: freebsd-questions@freebsd.org Subject: Sendmail for Large Sites Message-ID: <200406181113.i5IBDh1E035926@dc.cis.okstate.edu>
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How well does the administration of Sendmail scale up to sites serving as many as 25,000 users? At this moment, everything is more or less on the table, but what I envision is 25,000 work stations or so, each using Microsoft Outlook and several Sendmail servers serving the multitudes. We might use dns-based round-robin load balancing for all I know. This is all simply a mental exercise at this point, but the hardware is already in place running a commercial package which may have to be replaced if it can't be made to perform properly and soon. I am mainly interested in Sendmail's capacity at this time in order to suggest it as a possibility if it is realistic to do so. There are other considerations such as the facts that all incoming and outgoing messages are checked for malicious attachments. ldap is used to drive the setting of customer mail delivery preferences and even their user ID choice. To use an American vernacular, it is a tall order. Many thanks. Martin McCormick WB5AGZ Stillwater, OK OSU Information Technology Division Network Operations Group
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