What is outbound Port 25 blocking?:


In the event that your computer is suspected of being infected and sending out spam, a filter may be placed on your cable modem to block outbound port 25 traffic not destined for the TWC Mail servers. This is done to help you stay online and to limit the amount of spam that is sent out while your computer is being cleaned.

To send email outside of the TWC Mail servers, you’ll need to reset your connections from port 25 to port 587.

Note: If changing your outbound SMTP port to 587 still doesn’t allow you to send mail, please consult the documentation for the site that you are trying to connect to.

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