I have used Zimbra in the past, but stopped after my email account was hacked or simply found by someone out there by chance.
I found that in the past, the Desktop version was transmitting my data in plain text, which I can surely say that is why I got hacked.
Since Zimbra has changed ownership, can anyone tell me for certain if the newer versions are encrypted in it's data transmissions?

I want to use Zimbra again for my Yahoo mail accounts but am very reserved about trusting it unless I can be certain that it is secure.

Thank you for any help on the subject.