svnsync supports --trust-server-cert-failure, just like svn does, but because svnsync connects to two servers the single trust setting gets applied to both servers. There isn't a way to trust just one server.
Perhaps svnsync should have two trust options? Either to replace the single option or in addition. Or perhaps trust should be applied to servers via some sort of naming scheme like the options in the servers file? -- Philip Martin | Subversion Committer WANdisco // *Non-Stop Data*
