On Mon, Aug 10, 2015 at 09:46:33PM +0000, Rosenbaum, Larry M. wrote: > > Then, as a best-practice, add additional transport addresses to > > each exchange user account: > > > > mail: u...@example.com > > proxyAddresses: SMTP:u...@example.com > > proxyAddresses: smtp:u...@exch.example.com > > We're trying to see if we can get rid of that second proxyAddress
It is far better to keep it. > > but if that's just too difficult due to extreme bureaucratitis, > > you can undo the rewrite during transmission via smtp_generic_maps > > > > master.cf: > > relay unix ... smtp > > -o smtp_generic_maps=$relay_generic_maps > > > > main.cf: > > indexed = ${default_database_type}:${config_directory}/ > > relay_generic_maps = ${indexed}relay-generic > > > > relay-generic: > > @exch.example.com @example.com > > > > I think the smtp_generic_maps solution is going to work for us. Thanks. This is a hack, per-destination mailbox addresses are less likely to loop, make logs less confusing, ... If you already have secondary proxyAddresses, keep using them! -- Viktor.