on 5/29/2003 5:59 PM David Morris wrote: > The slower process will be the millions of smaller mail infrastructures, Yes, small business are the biggest hurdle in the deployment cycle. Fortunately, I think that most of them probably use their ISP's mail services, so its not quite like we have to convince every office in every stripmall to upgrade. > As long as the new protocols provide a migration plan and support, > upgrade over a year or two is a reasonable expectation. Yes. And its also reasonable that after ~80% switch, sites can start to disable the legacy compatibility mode. Note that many of them will still need it for things like printservers and other devices, but for general Internet communications it should be a little easier since most of the changeover can happen just by getting most of the ISPs to switch. The really hard question isn't the upgrade, its how to limit pollution from legacy MTAs during the upgrade. If spam is still running high during the transition, then people will wonder why they bothered. -- Eric A. Hall http://www.ehsco.com/ Internet Core Protocols http://www.oreilly.com/catalog/coreprot/