Hello.
I would also recommend having unique hostnames as well, so that postfix
can keep track. It's perfectly fine to have the same IP.
IE: mail.mydomain.com, mail2.mydomain.com etc
Also, it might not be necessary to have two instances, you can probably
do it with one, as SMTPD is for incoming and SMTP is for outbound in
master.cf
You can specify customer ports in master.cf as well, for example, I have:
My default inbound which has amavis filtering, and I have a second
listener on 127.0.0.2 for internal relay mail.
smtp inet n - n - 25 smtpd
-o content_filter=smtp-amavis:[127.0.0.1]:10024
127.0.0.2:25 inet n - n - 25 smtpd
-o smtp_bind_address=$smtp_bind_override
michalr0 wrote:
Hello i have two instance of postfix
one for incoming (p:25) and one for outgoing (p:587)
I use this configuration because in this way i may check DNS and MX records. I
have some virtual domains. When I send email to client which changing mail
server (from me to other ISP) I sending emails to me server (old) not to new
server
and I have one trouble
when I sended email from my server to outside server i working great
when I received mail from outside server is working great
but when i sended from me to me I have many errors
NOQUEUE: reject_warning: RCPT from 1-2-3-4.dynamic.xx[1.2.3.4]: 450 4.1.7 <ad...@mydomain.dd>:
Sender address rejected: unverified address: mail for mydomain.dd loops back to myself;
from=<ad...@mydomain.dd> to=<t...@mydomain.dd> proto=ESMTP helo=<[192.168.1.140]>
