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Rejected by host access table unknown - domain bypass

Chris Richards
Beginner
Beginner

We are seeing a legitimate domain being rejected by Host Access Table with unknown.  The end result the email is aborted.  The sender maturity is on at 1 day but domain has been in use for 6 months.  

What do I need to set to allow this specific domain through without being blocked?

The external IP is not possible as they are not using a static IP.

 

 

 

1 Accepted Solution

Accepted Solutions

UdupiKrishna
Cisco Employee
Cisco Employee

I am assuming from the explanation it is possibly blocked by SDR. You can create a SDR exception by creating a domain name based address list and use it under SDR bypass.

https://www.cisco.com/c/en/us/support/docs/security/email-security-appliance/216192-configure-sender-domain-reputation-for-e.html - Refer to "Domain Exception list" section"

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1 Reply 1

UdupiKrishna
Cisco Employee
Cisco Employee

I am assuming from the explanation it is possibly blocked by SDR. You can create a SDR exception by creating a domain name based address list and use it under SDR bypass.

https://www.cisco.com/c/en/us/support/docs/security/email-security-appliance/216192-configure-sender-domain-reputation-for-e.html - Refer to "Domain Exception list" section"

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