For all users of MS Exchange with a SmartHost configuration experiencing difficulties sending/receiving email via Comodo Antispam Gateway.
> Open Exchange Management Console.
> Click on the '+' next to Organization Configuration.
> Select Hub Transport and select the 'Send Connectors' tab.
> Right-click on the existing Send Connector, select 'Properties' and go to the Network tab.
> Select "Route mail through the following smart hosts:" and click 'Add'.
220.127.116.11 18.104.22.168 mxpool1.spamgateway.comodo.com
> Repeat process to add
22.214.171.124 126.96.36.199 mxpool2.spamgateway.comodo.com
> Click OK (no authentication is required)
> Launch your Exchange Powershell Console and at the prompt enter: Set-SendConnector -identity 'NAME OF YOUR SMTP CONNECTOR' -Port:587
> Restart the transport service from your services.msc MMC
> Log in to your CASG console and go to the Outbound Users panel
> Add the External IP address of your Exchange server as a user (e.g. 'SERVER IP ADDRESS'[at]'DOMAIN')
If you are still struggling please contact us asgsupport[at]comodo.com