[SOLVED] Setting MTA hostname to public name for host which is on private network...

[AnthonyBurton]

Is it possible to set the hostname of the Zimbra MTA such that when the server sends mail outbound HELO/EHLO does not reveal the private hostname?

When I send mail now, the mail bounces on some mail servers (which are configured correctly to block bogus hostname/PTR pairs):

550 5.7.1 We do not accept mail from dynamic-IP hosts or generic/machine-generated hostnames - you must get a custom reverse-DNS name from your ISP for your host: mail.myco.lan

Thanks.

[alexkelly]

I think you are looking for this:
[SOLVED] Problem With zmlocalconfig -e and Postfix smtpd_banner Variable

[AnthonyBurton]

zmprov ms <server> zimbraMtaMyHostname <external_hostname>