554 5.7.1 Relay access denied - MSExchange.org Forums: Exchange Server Discussions

azza00 Posts: 2 Joined: 28.May2010 Status: offline Hi, We are unable to send emails via our Exchange server using Pop3. The NDR is - The following recipients could not be reached: 'user@domain.com' 554 5.7.1 : Relay access denied Exchange: Pop3 ...

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