Hi !

My Mail server is setup with DKIM/DMARC/SPF and it working. My network is connected to this server with a vpn.

Now some devices within network want to send messages to users inside and outside the domain.

i have a local postfix installation on an internal device which i use as "gateway" to my mailserver. the transport is setup to send all mail to this server. but for example if my scanner tries to send an email to a user on the mailserver i get this

<lj...@hoerst.net>: host 192.168.99.1[192.168.99.1] said: 550 5.7.1 Command
    rejected (in reply to end of DATA command)
(192.168.99.1 is the vpn interface of the regular mailserver)

i send them via TLS and authentication...

in the mailserver is setup

smtpd_sender_restrictions = permit_mynetworks,
                            permit_sasl_authenticated,
                            reject_non_fqdn_sender,
                            reject_unknown_sender_domain

in mynetworks 192.168.99.1 is included...

So how can i manage the mailserver to accept all mail on vpn interface ?

Ciao Gerd

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