werner vd merwe asqnynblueswordcoza good day fairly new postfix scratching around google lists time unable find solution hopefully stupid question j lets say companys email domain called examplecom head office cape town branches johannesburg kimberley virginia cities south africa several 100 miles apart currently system set using postfix postgresql users pop cape town server would love able cape town remains primary mx domain intelligently routes specified users branch work inversely deliver mail local users local mail branches currently way think create eg virginiaexamplecom domain virginia alias email addresses users cape town box uoudaaprvirginiaexamplecom virginia box create users branches alias respective virtual domains unless alias local users examplecom branchnameexamplecom send nonlocal mail cape town aliased different subdomains seem like bit spaghetti mess hoping cleaner safer way hope makes sense configuration postfix 2210 postfix admin 210 postgresql 7413 centos 44 server attached maincf file thank much advance kind regards werner wed 06 aug 2008 040806 0200 muliple site single domain