I have users with multiple Zimbra accounts that need to send out from each account. I've worked out all the kinks involved and they can actually send out now, however, when they reply to a message from one of their (non-default) accounts, the message will by default send from the default account. I've setup the personas in the Web GUI to send from specific accounts if the email was received to specific emails, but Outlook doesn't respect that.

Is there anything I can do?