Saturday , April 29 2017

MailFlow

550 Address unknown – Sophos UTM 9

From Office365/Gmail fails to Exchange On-Premises External to Internal Mails 550 Address unknown Anti-spam Sophos UTM 9 NDR From Office 365 to Exchange 2010/2013/2016 On Premises – Original Message Details Created Date: 11/8/2016 4:25:50 PM Sender Address: test@external.com Recipient Address: user@careexchange.in Subject: Test333 Error Details Reported error: 550 5.0.350 Remote ...

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