Disable Helo Restriction


I need to disable the Helo Restriction because when I send an email from Vcenter this appear as hostname.localdomain instead of hostname.nethserverdomain.

So How should I configure the “smtpd_helo_restrictions = check_client_access cidr:/etc/postfix/access.cidr, reject_invalid_helo_hostname, reject_non_fqdn_helo_hostname” parameters?
where is the main.cf?
Thank you for your help

Is an IP-based policy good for your environment?

You could list the IP address to bypass policy checks. Refer to


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Thanks for your help Davide. I will set the ip addresses to bypass policy

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