MailEdge

You never told us about any issues you were having, and you never opened any trouble tickets. Sales email is just that, for sales. We encourage everyone to install the 30-day free trial and evaluate before you buy, but I guess you didn't take advantage of that. You reported no issues post installation. You gave us no opportunity to help you.
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Did you open a real ticket? as in account.blesta.com?
Languages depend on translate.blesta.com and why do you even have selinux enabled? most people disable it on Centos?