Recently moving from pure postfix email server to zimbra, really want to have the web part of emails and calendars. Before I had postfix on ubuntu and proxmox PMG filter as my relay, I was looking though the zimbra config and found the master.cf.in to change the SMTP port to 27 so it can receive inbound email from proxmox PMG (if it has port 25 the same as PMG it will say a loop because the PMG filter hostname is mail.domain.com same as zimbra so that why i need to change the port)
as changing the port and reboot i can telnet the port which is good, but there are a few issues
1) when inbound email comes though proxmox PMG filter and tries to send it to zimbra it says this error,
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Anonymous TLS connection established from mail.clientdomain.com[190.145.xx.xx: TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)
Nov 11 13:02:46 mail postfix/smtpd[15675]: NOQUEUE: reject: RCPT from mail.clientdomain.com[190.145.xxxxx]: 454 4.7.1 <sistemas@mydomain.com>: Relay access denied; from=<sistemas@clientdomain.com> to=<sistemas@mydomain.com> proto=ESMTP helo=<mail.clientdomain.local>
i know its not a PMG issue because i have another email server on postfix and it work, i think im missing something on zimbra,
I just want to make sure im looking at the right part the logs of postfix is in /var/log/mail.log?
Thank you