I have installed Zimbra 8.8.15 FOSS on CentOS 7.0. Everything seems to be working fine. Now, I want to block users from sending emails to external mail server. I checked couple articles:
- Restrict Users to Certain Domain - Zimbra Wiki
- Restrict Sending to Certain Domains - Zimbra Wiki
- Zimbra Tips How to Restrict Sending To Distribution List
Some part on those articles mentioning to create file in /opt/zimbra/postfix which does not exists for me - I think the new version of Zimbra changed the structure. I found the mentioned directory - postfix in:- /opt/zimbra/data/postfix
- /opt/zimbra/common/share/contrib/postfix
Regards,