On Wed, May 5, 2010 at 11:06 AM, Kevin Chadwick <ma1l1i...@yahoo.co.uk> wrote: > I understand that currently the rfcs state plain must be supported on > publicly listed servers, but can anyone save me the trouble of delving > into more rfcs and tell me if it's possible (atleast potentially) to > use a mail proxy like nginx to negotiate starttls in front of spamd. > > > I think that in other words I'm asking. > > Is the starttls supported keyword sent before spamd sends a 451 > response just after the data command is received from the client > > Is the starttls supported keyword sent before or after spamd sends a 450 > response to blacklisted hosts.
STARTTLS should be the first command the client issues, long before DATA, but you seem confused as to who is connecting to spamd. Your clients should never be talking to spamd to submit mail.
