Am 28.04.2011 22:09, schrieb motty.cruz: > warning: hostname mail.northwestpetroleum.com does not resolve to address > 72.54.186.219
this is bad but not the problem > # nslookup northwestpetroleum.com > Server: my.dns.ip > Address: my.dns.ip#53 > > Non-authoritative answer: > Name: northwestpetroleum.com > Address: 72.54.186.221 > > Could that be an issue (postfix sees xxx.xxx.xxx.219) and nslookup > xxx.xxx.xxx.221? no again: Sender address rejected: Domain not found the dns of the host is not relevant the SENDER ADDRESS is rejected because the part after @ can not be resolved so if the public dns of the client-domain has troubles you will reject with your settings in the past
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