Hi Dravion On 08/26/2015 06:11 PM, dravion.sm...@gmx.net wrote: > I can send emails from telnet smtp.mydomain02.com (with reponse 220 > smtp.mydomain02.com) but i geht this > if i receive the mail with an EMail Progamm like Thunderbird or Mutt. > "Received: from smtp.mydomain01.com" > "by smtp.mydomain01.com (Dovecot) with LMTP id jMydI//Z3VUIOAAACRxwyw" > That header is not added by postfix, but by Dovecot. It reports where Dovecot gets the message from.
You can influence this with postfix configurations (like lmtp_bind_address and lmtp_bind_address6 and setting up customized lmtp processes and transports for each destination with separate ips or maybe by changing to a different method of delivering email to dovecot) but it's a lot of effort to go to. In your situation, I'd evaluate the complexity of the various solutions against the simplicity of just setting up a service domain that handles email (and potentially other services like dns) for all the hosted domains. John
