We have been running internally for a while and I am now trying to setup a client (thunderbird) for external access via Zimbra proxy.
Our setup is as follows:
Zimbra Proxy (proxy package and SNMP)
Mail Server (all except proxy package)
Zimbra 5.0.16 FOSS
We have successfully tested external access via webmail but cannot seem to connect for IMAPS.
There is a firewall inplace allow port 993 through.
The proxy imap ports are:
IMAP Port: 7143
IMAP SSL Port: 7993
IMAP Proxy Port: 143
IMAP SSL Proxy Port 993
The IMAP Port settings on the mail server are:
IMAP Port: 143
IMAP SSL Port: 993
This doesn't look quite right to me. Are these values correct? Should I be letting port 7993 through the firewall or 993?