Blocking spoofed address
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 ???
- stefaniu.criste
- Posts: 41
- Joined: Wed Feb 12, 2014 5:40 am
- Location: Romania
- ZCS/ZD Version: 8.8.8_GA_1728 20180614052922 201806
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Re: Blocking spoofed address
Two quick ideas (you need however to find their outgoing IPs)
- you could block their sending IPs at the firewall level (rough and brute)
- you can set a local RBL and add their IPs, as well as other nasty spammers (harder to implement, but very elegant)
- you could block their sending IPs at the firewall level (rough and brute)
- you can set a local RBL and add their IPs, as well as other nasty spammers (harder to implement, but very elegant)
Stefaniu Criste - managing partner
Hangar Hosting - a safe place for your business
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Hangar Hosting - a safe place for your business
proudly delivering Zimbra services in Romania