SMTP HELO Parameter

[CarlosinFL]

I'm having a hard time with the following configuration parameter:

Code Select Expand

$rcmail_config['smtp_helo_host'] = '';

My instance of RoundCube is installed on my 'web' server which is:

//www.mydomain.tld [192.168.0.201]

My mail server running Postfix is installed on 'mail.mydomain.tld' [192.168.0.200]. Both machines are on the same network and subnet so my question is what is the correct configuration that should be used for RoundCube to announce HELO/EHLO to my mail server?

My FQDN on my web server is 'www.mydomain.tld' so what should I configure for 'smtp_helo_host'?