@Bruce, Do you have the logs of the mailer at hand? If you are not using a mail relay (also called "smart host") you should receive some code from hotmail mx server(s). That should point you in the right direction.
mic Il 30 aprile 2012 06:55, tsvim <ttm...@gmail.com> ha scritto: > i just looked up your domain. You should setup DKIM and SPF records for your > domain. Don't have the links to explanations handy, but basically those are > two different technologies that allow you to authenticate the source of the > mail thereby proving that a spammer didn't just set the from field to your > domain. > It's quite easy under Google apps. DKIM requires you to generate a key for > your domain which you enter as a text record at your DNS provider. SPF > doesn't require a key, just a DNS txt record telling the receiver that he > should check with Google that this is valid user. > > Hope it helps, > > Tsvi
