Is Homestead on Barracuda Whitelist (EmailReg.org)?

When sending email to a customer a few years ago, I got bounce-backs from their Barracuda firewall, because my email address was 'blacklisted.' In reality, it was likely that some Homestead user's spam probably got their mail servers tagged.

Nonetheless, I subscribed a few of my Homestead domains to EmailReg.org, as recommended by Barracuda, which seemed to resolve the issue. I'm guessing Homestead domains have the same IP addresses/ranges (209.157.71.80 at MxLookup.com).

My EmailReg subscription is up for renewal and I'm wondering if Homestead actually whitelists their servers with Barracuda, etc. so I don't have to pay (again)? Anyone know?