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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 emkei.cz to my domain. By using emkei.cz we can send email from abc@example.com to def@example.com 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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