Hi,
I have a few external Users with Dynamic IP Adresses. They need POP3 Access to our Exchange Server and to send smtp through the Astaro Box.
POP3 is working so far, but I have a problem with SMTP. I created SMTP Users on the Astaro and activated SMTP-Auth. But when they try to send mail, they get: '550 Relay not permitted'.
What am I doing wrong? I thought SMTP-Authentication is for external Users so I dont need to open my SMTP to relay with everyone.
Thanks for help
Dirk
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