try to setup a server in cloud with several clients. everything goes well with the email clients from laptops/computers and mobile devices (tablets and phones), but we have also in our office 2 printers that need scan end email and we can’t figure out how to setup them. can you help me with some info?
on the printers we see smtp error message
on the server we get "postfix/smtpd connect from unknown [ our IP from the office]
how can we do to our server to recognize this IP as “friendly”?
thx and regards