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A mail account called boss@domain.com is fake

Received: from server.proxmoxgateway.com (localhost.localdomain [127.0.0.1]) by server.proxmoxgateway.com (PROXMOX) with ESMTP id 538F46C15B7 for <admin@alanadim.com>; Wed, 6 Apr 2022 12:16:57 +0300 (+03) Received: from server.proxmoxgateway.com ([185.42.200.100]) by...

When an e-mail comes from a fake e-mail address, it goes through this filter. What setting should I activate to prevent this?

If there is a digit in the domain name rule: .*@[0-9]*\.(.*) If there is a digit in the subdomain name rule: .*@.*\.[0-9]*\.(.*)

Thank you for explaining this topic very well.

I need a rule like this. I do not want to receive mail from domains and subdomains that contain only numbers. Example: blabla@126.com blabla@vip.126.com

I did not know that. I am sorry.

Can a few such features be added in the new version? * Automatic rule suggestions A sample spam mail was sent and filtered. (approved) Can the system offer rule suggestions to block this mail? - Create rule to block sending domain. - Create rule to block domains similar to sender domain. -...

Sample: A mail that I checked from the Tracking Center section passed through the filter. I also created a rule for this mail. How can I test whether the rule is stuck when this mail comes back? Is there such a feature in the software? So I want to see how the system will behave when the same...

My ip address is not in the RBL lists. I changed the domain address that I defined to the mail server at the moment and it was fixed. But I'm looking into what to do if it recurs.

no problems with other providers. just gmail

was already working. It worked for 3-4 days and then it went away. I changed the domain name I currently set up the system and the domain name I use for xm and it was fixed. It's like gmail has blocked my addresses. It didn't seem to allow me any outgoing emails.

Emails sent from gmail.com accounts never reach the server. what could be the reason? It doesn't even show up in the server logs. There is no error message coming back to gmail.

Is there a common list of rules written according to virus or spam mail types discovered by other users? It's like a rule pool that everyone shares in common.

thank's bro

thank's bro. I want to ask one more thing. Reject unknown clients Reject unknown senders DNSBL Use SPF I want to create a trusted list where I don't want rules like is it possible? For example: For the abcd.com address, I want it to be delivered directly, regardless of these rules. because I...

I added creafone.com. Doesn't this cover all subdomains as a domain address? x.creafone.com y.creafone.com

"Reject Unknown Clients" & "Reject Unknown Senders" features are active in System Settings. There is a sender and the system rejects the mails from this sender. The log records and the results I got with the dig command on the server are attached. How can I fix this.

this mail raw attach

There was a spam mail from xxxx@e.abcd.com. To prevent this, I added abcd.com as a domain to the blacklist. (Who Objects->Black List->Type: Domain) But the mail was filtered again. I think it passed because it is a subdomain. How can I block a domain address including all subdomains?