Question : SmtpClient and Exchange server settings

Dear All,

I have tried to use SmtpClient to send email. The code is quite simple as usual and the "DeliveryMethod" I use is "Network".


We have 2 exchange servers. One works fine with my code, however another tells me "Mailbox Unavailable: The server response was: 5.7.1 Unable to reply for [email protected]".

Instead of changing the code (if possible), does anyone know I to configure on that exchange server to allow email sending function? (These 2 exchange servers were initially setup by 2 different people.)

Thanks heaps!

Answer : SmtpClient and Exchange server settings

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