Why is Qwest filtering port 25?
The majority of spam (unsolicited email) on the Internet is caused by malicious software viruses that take control of infected computers. These viruses direct the infected machines to send email through port 25. Qwest takes spam very seriously. Qwest blocks connections on port 25 to prevent infected computers from being used by spammers to send unsolicited email. Outbound port 25 filtering is a standard industry method to control spam.
