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Email Error: 450 Client host rejected

A couple of our clients sometimes have issues when sending email, with a returned non-delivery report stating the following: Peer server rejected email: 450 Client host rejected: ‘cannot find your...

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Palo Alto Networks : Firewall Loopback interfaces

In a dual-homed network infrastructure, loopback interfaces are a very valuable configuration option on Palo Alto firewalls. Cisco folk may be more familiar with the use of loopback interfaces, so this...

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