dennis putnam zpsfsgxlsafyaimauditcom thanks reply sure information need ask need something else however relevant lines maincf myhostname xserveoneaimauditbiz mydomain aimauditbiz mydestination mydomainmyhostname initially last two lines included thought defaults work tried adding neither way works feb 19 2008 143 pm noel jones wrote dennis putnam wrote im even sure ask question hopefully someone understand talking 2 servers two different domains com biz set almost identically biz server backup com biz server really remote disaster recovery site open directory slave one disaster recovery tests make sure get mail via server time cant really change mx records test trying send mail biz server using biz address instead com seems simple enough probably im problems however email received biz server seems trying relay somewhere com domain get rely denied guessing way mx records set although biz domain alternate mx records question get server accept deliver messages local mailboxes least testing without changing dns thanks dont give us much information go postfix default allows relay access either recipient domain listed mydestination relay_domains virtual_alias_domains virtual_mailbox_domains ip connecting client listed mynetworks parameter get relay denied message none true youve changed defaults httpwwwpostfixorgbasic_configuration_readmehtml httpwwwpostfixorgdebug_readmehtml httpwwwpostfixorgdebug_readmehtmlmail noel jones dennis putnam sr systems administrator aim systems inc 11675 rainwater dr suite 200 alpharetta ga 30004 phone 6782404112 main phone 6782970700 fax 6782972666 7705761000 information contained email attachments strictly confidential intended recipient use dissemination distribution duplication part email attachment prohibited intended recipient please notify sender return email delete copies including attachments thu 07 aug 2008 052237 0500 relaying denied