I want an mailserver in the DMZ. Is it then better to use the smtp-proxy or is it even possible? Is the mailserver then accesseble for clients from the internet(because that has to be). And the mailserver is also the mailserver for my LAN and i saw in the manual that there are only 25 smtp connections at the same time possible, isn't this a problem if you have 35 clients in the LAN and they use imap(i think imap has an constant connection to the mailserver).
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