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Categories: Exchange Server Toolbox | Show all categories
I got an "unable to relay" error on using the auto reply rule action. How can I solve this problem?
When the Exchange Server Toolbox tries to send auto reply messages, it uses the Exchange Server to send these mails over SMTP. Since by default the Exchange Server rights are restricted, the Exchange Server Toolbox may not be allowed to do this. Therefore you have to configure your Exchange Server to allow the Exchange Server Toolbox (i.e. localhost) to send mails via Port 25 or 587.
