Tony Finch wrote: > On Wed, 13 Jun 2007, Arnt Gulbrandsen wrote: >> Cases like managesieve. Managesieve is almost a decade old and in real >> use at many sites. Tens of thousands? Even more? No idea. The port it >> uses was allocated to another purpose about four years after managesieve >> was deployed. > > The smtps port was reallocated too, but Microsoft's MUAs still don't > support SMTP+STARTTLS on ports other than 25 and insist on smtps. > Postmasters have to just shrug and continue to use port 465 for this > purpose. OS vendors can't use the IANA port number list without patches. The application that 465 was allocated for, runs as an interception proxy or routers so if you were actually to use URD, you break mail clients communicating with exchange servers. There's some serious brokenness in that whole debacle. > Tony. _______________________________________________ Ietf@xxxxxxxx https://www1.ietf.org/mailman/listinfo/ietf