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Port 25 Filtering*

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  Why is CenturyLink filtering port 25?
CenturyLink filters port 25 to reduce the spread of email viruses and spam (unsolicited email). Filtering port 25 has become the industry standard to reduce the spread of email viruses and spam. These email viruses allow malicious software to control infected computers. These viruses direct the infected machines to send email viruses and spam through port 25.
  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 leased static IPs and your email address ends in @q.com, @centurylink.net:
  • Login to the Static IP tool. Under the Port 25 Filtering heading, select "Turn Off".
  • If you have leased static IPs and your email address ends in @qwest.net, @qwestoffice.net:
  • Login* to Account Manager. Under the Features section, select Port 25 Filtering. You will be prompted to Disable Port 25 Filtering. Select Next to disable the filtering. *Your login ends in @qwest.net, and can be found in your modem user interface (GUI), then select the Modem Status icon. Look for the "PPP User Name".

If you have not leased static IP addresses from CenturyLink, or encounter another scenario with port 25, please contact us by going to the CenturyLink Chat Page and selecting Internet (Tech) Support.
  How do I order static IPs?
You may configure and start using your static IP address within one hour of ordering it from CenturyLink.
If you have a Residential** Account:
Order using the static IP tool. Detailed instructions for purchasing static IP(s).
** example email address: @q.com, @centurylink.nets
If you have a Small Business* Account:
Order using account manager. Detailed instructions for purchasing static IP(s).
* example email address: @qwest.net, @qwestoffice.net

*Port 25 filtering only applies to customers that have CenturyLink as their ISP. If you have a 3rd party ISP click here to look up their contact information.