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Exchange spam filtering

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2 replies

by dandgconsultants

Closed to new repliesThis discussion is closed. It stays readable, but it takes no new replies.

You do not have permission to send to this recipient. For assistance, contact your system administrator.
#5.7.1 smtp; 550 5.7.1 Message content rejected, UBE, id=16186-05-5>

The user is not sending a message to this account. Barracuda filtering is sending this to her email account in Exchange 2003.

2 replies

by bfilmfan

Someone is spoofing the email address and your user is getting the non-delviery report (NDR) that the external email system is generating.

Tell your user that is a pretty normal message to see with all the spammers out there these days.

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