Hi,
Big problem we can't send mails from Thunderbird via our Zimbra SMTP server, I have to add the from public IPs addresses in main.cf in $mynetwork but each time I restart Postfix I loose the config.
Two questions :
1 - Does Zimbra work as IMAP_BEFORE_SMTP feature to open the SMTP relay ?
2 - How to set $mynetwork to keep his configuration in each restart ?
Sam.

