Should i enable sender id filtering

Also seeing 5. Best Answer. Ghost Chili. AR-Beekeeper This person is a verified professional. Verify your account to enable IT peers to see that you are a professional. View this "Best Answer" in the replies below ». Popular Topics in Microsoft Exchange. Which of the following retains the information it's storing when the system power is turned off? Submit ». And since you know them and want to receive the email you could add them to the whitelist.

To clarify, we're running Exchange SP3 Update rollup Dave G. Sep 20, at UTC. Alan Dec 19, at UTC. When it did the SPF check, it checked to see if the IP of our mail filter gateway was in the SPF record, which of course it is not, and bounced it because Sender ID was set to reject I can't think of another reasonable explanation.

I hope this helps someone else. This topic has been locked by an administrator and is no longer open for commenting. Read these next And, if something does manage to sneak through, the software "detonates" the link in a secure box so it can't infect your PC if it is nasty. Every time we fix an IT issue we ask our customers to rate the service. We monitor and publish all the results to ensure we're delivering the best service possible.

Spoof emails waste everyone's time and they can be dangerous too. Graham has written a technical guide on how to block these emails using Exchange. Related Posts:. Should I backup Microsoft ? Installation and configuration of the Exchange antispam agents can be completed by running the following commands utilizing the Exchange Management Shell:. Disable the Agents that are not within the scope of this article.

To disable the agents, run the following commands in the Exchange management shell:. To confirm the agents have been disabled run the command Get-TransportAgent. This default action does not take any action against spoofed messages except to stamp the headers of the message.

To block spoofed messages the SpoofedDomainAction should be set to Reject. Symantec does not recommend modifying the TempErrorAction to Reject as this setting will cause Sender ID to fail closed It will drop all emails as a spoofed message if for some reason it cannot complete the Sender ID check. To confirm the configuration run the following command in the Exchange Management Shell to identify if the SpoofDomainAction is now set to Reject:.

Note: There are additional options that allow for configuration of exclusions for Recipients and Sender Domains. The scope of the article does not include configuring these options. For information on these options please see the following Microsoft article:. Within the same Exchange Management Shell window Or cmd. The following process is designed to send an email utilizing telnet.

This test can typically be performed from a workstation assuming the network allows connectivity to the Exchange server on port SMTP port This test can be performed in the Exchange Management Shell or in a Command prompt cmd. If this test is performed from an IP address that is not allowed in the configured SPF record this message will be returned from the Exchange server: 5.