Hi On Tue, 2006-08-29 at 07:29 +0800, W B Hacker wrote: <snip> > But even a very active ISP ordinarily has a 'rate of change' that is > insignificantly low compared to, for example, a Point-of-Sale / inventory > control system, theater ticket sales, or banking.
I worked for a number of years for a recently acquisitive UK ISP (which in fact swallowed the hosting company I was part of). Granted, the ISP side of the business used a RDBMS exporting to file-based DBs; their rate of change was relatively low. <snip> > But I still do not recommend it for general smtp use. The hosting side had a massive rate of change, and the keep-in-db-and-export-via-cron approach had started to cause us problems, so we moved to a replicated SQL backend approach whereby changes were reflected all but instantaneously. It worked perfectly, for many hundreds of thousand addresses across many tens of thousands of domains. I think, at this point, I will accept the relative merits of both systems but agree to disagree with Bill :) Graeme -- ## List details at http://www.exim.org/mailman/listinfo/exim-users ## Exim details at http://www.exim.org/ ## Please use the Wiki with this list - http://www.exim.org/eximwiki/
