hi folks,
i have following problem:
i got my mailserver in my dmz. the smpt proxy is configured and activatied. reciving mails and forward them to the "real mailserver" is no problem and sending mail via the smpt proxy is no problem to.
but if users from the internet want to send mail via their mailclients this doesn´t work. because the authentication is must be done by the mailserver in the dmz. but the smpt proxy grabs all trafic so that users from external aren´t able to send mails via the mailserver.
i´ve solved it with a dnat/snat rule --> but now incoming mails ar bypassing the proxy. only outgoing mails are going out via the proxy.
is there any posibility to make it posible for external users to authenticate to the mailserver in the dmz but don´t bypass the smtp proxy ?
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