Vinicius <cviniciusm@xxxxxxxxxx> writes: >>> root... Connecting to [127.0.0.1] via relay... >>> 220 myhost ESMTP Postfix (2.3.3) >>> >>> >>> EHLO myhost.mydomain >>> >>> 250-myhost .... You weren't really expecting postfix to find a host called myhost.mydomain in dns were you? $ host myhost.mydomain Host myhost.mydomain not found: 3(NXDOMAIN) In general you need to have a legit hostname set, or at least a complete and consistent set of lies that get presented to postfix (eg, via a doctored up /etc/hosts with a few phony entries for your forged hostname.) -wolfgang -- Wolfgang S. Rupprecht http://www.wsrcc.com/wolfgang/