Configure for Outbound Mail Filtering
To configure for filtering the outbound mails from your domain, click the 'Outbound' tab of the configuration panel.
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Listening Port - Specify the listening port of the Comodo Mail Gateway's MTA.
Note: If Comodo Mail Gateway and mail server are on the same host, this listening port should be different from the mail server's listening port (default is 25 for SMTP). |
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Allow outbound mail connections from all IP address? - If this box is checked, Mail Gateway will accept connections from all IP addresses. If unchecked, Mail Gateway will only accept connections from the "IP or Domain list" given in the box. This box is selected by default.
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IP or Domain list - This field enables you to restrict Comodo Mail Gateway to accept connections only from a set of hosts by specifying a list of allowed hosts. This box is enabled only if the Allow outbound mail connections from all IP address? isunchecked. Click on the + button and then double-click on the shaded area in the field. Enter the domain name or IP Address of the allowed domain in the field. Repeat the process to add more domains.
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Maximum number of connections - Specify the maximum number of connections which Comodo Mail Gateway can accept.
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Maximum message size - Set a maximum limit (in Bytes) for the size of received messages that Comodo Mail Gateway should accept.
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Accept TLS encryption - Specify whether Transport Layer Security (TLS) encryption is required for the connections to Mail Gateway, from the drop-down:
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Must - Comodo Mail Gateway will reject all non secure connections.
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Can - Comodo Mail Gateway will support secure connection on demand of client.
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No - Comodo Mail Gateway will not support secure connection.
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Certificate - Choose a certificate for encryption, imported into Comodo Mail Gateway through the Certificates dialog.
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Verify peer - Set it to yes if you want mail gateway to verify authenticity of a server certificate, otherwise mail gateway will only use secure connection without verifying.
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Antivirus action - Comodo Mail Gateway receives emails and then scans the attachments. If attachments contain virus, Mail Gateway will do a specified action, like modifying its subject to indicate it contains malicious attachments or delete the attachment and then pass the modified email on to the mail server. Specify the action to be taken on the mails identified with virus attachments:
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Modify Subject - Adds a note to the subject of the mail. An example of modified subject: [VIRUS: 008gangsir.cn.exe infected by Malware] Bank Statements
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Delete Attachment - Deletes the virus attachment.
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Virus bounce action - Bounce e-mail (sometimes referred to as bounce mail) is electronic mail that is returned to the sender because it cannot be delivered for some reason. Select the bounce action to be taken on mails identified with virus attachments:
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No - The email will not be returned to the sender
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Bounce - The email will be returned to the sender
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Bounce without original - The email header will be returned to the sender without the original content and the attachments
Outbound Local Mail Delivery
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Use MX lookup for non-local domain mail? - Select 'no' if you want to manually specify a delivery host. Default is 'yes'.
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Delivery host - Specify the host name or the IP address of the mail server to which the mail gateway should pass the scanned mails.
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Delivery port - Specify the listening port of the mail server.
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Force TLS encryption? - Specify whether Comodo Mail Gateway should use only TLS secured connections. Default value is 'no'.
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Yes - Comodo Mail Gateway will reject non secure connections.
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No - Comodo Mail Gateway will support secure connection if server supports.
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Certificate - Choose a certificate for encryption, imported into Comodo Mail Gateway through the Certificates dialog.
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Verify peer – Specify whether or not to verify the authenticity of a server certificate. Select 'Yes' or 'No'. Default value is 'no'.
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Yes - Comodo Mail Gateway will verify authenticity of inner mail server's certificate.
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No - Comodo Mail Gateway will only use secure connection without verifying.
Click 'OK' for the changes to take effect.