text_combined: mouss qpeqrnetoyennet jonathan dill wrote james parra wrote suggest client ask clients vantage point server one rejecting mail need tread politely concerning removing reject_non_fqdn_hostname reject_non_fqdn_helo_hostname something want werent client wouldnt worry much must way could add exception maincf domain ip address sent email server would also reject would alone seriously wonder setting etcnsswitchconf check files first adding entry etchosts would fix eg 6422240195 nsky3com dont break system try fixing someone else instead use opportunity put pressure whitelist ip sure postfix verifies fqdn uses os resolver stack method jonathan wed 06 aug 2008 010713 0100 server rejecting mail single domain