Understanding port 25 filtering

CenturyLink follows the industry standard of port 25 filtering to reduce the spread of email viruses and spam. Port 25 filtering prevents unauthorized and possibly infected messages from being sent through the network. 

How do I turn port 25 filtering on or off?

Customers with a dynamic IP address cannot turn off port 25 filtering.

 

If you have previously leased a static IP address and need assistance with port 25 filtering, please contact us

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