Hello haze182, if I understand it correctly, you are authenticating and sending all emails from Zimbra through the gmail account. So I guess that Google doesn't allow you to change the "From:" address to anything else that your gmail account address or what you have configured in the gmail...

Try this one:

zmprov ms `zmhostname` +zimbraMtaSmtpdSenderRestrictions "check_sender_access lmdb:/opt/zimbra/conf/postfix_reject_sender"

Reference: https://wiki.zimbra.com/wiki/Domain_lev ... g_of_users

Hi, what URL are you trying to reach? Did you checked the log files in /opt/zimbra/log?

By default the tools are accessible at: https://yourdomain.com/downloads/index.html, but you should be logged in first.

Hello guys, same issue here - Zimbra 8.8.15 NE and FOSS too. I opened a support ticket on 23. august. Zimbra support was able to reproduce it on their test servers and allegedly the update to 8.8.15_P1 solved the problem on their side. But not in my case. Tried updating both the NE and FOSS and I'm ...