Knowledgebase: Reflexion
451 Connection Refused
Posted by Carlos Rios on 15 November 2017 02:43 PM

This error indicates that the receiving server is blocking or dropping the connection to Reflexion without any response being provided.

Unlike "unable to locate MX server" errors, this indicates that DNS has provided a valid MX record for the domain but the server listed in the MX record is not responding.

The receiving server should validate at the firewall and server levels that there is not any blocking of Reflexion's IP ranges in place.


ERROR: This domain name does not match domain registered in the license key file (, allowed domains:,localhost, please change the product path to match the domain under Admin CP > Settings > General Settings
This product will not work properly unless untill that value is changed.

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