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by manuns
Tue May 22, 2018 7:20 am
Forum: Administrators
Topic: Blocking spoofed address
Replies: 1
Views: 543

Blocking spoofed address

How can i block email that are coming from fake emailer like to my domain. By using we can send email from to without any authentication and this seems risk in upcoming days can. How can I prevent this in zimbra 8.6 opensource edition ???

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