Does the filter of port 25 hinder customers’ ability to send email?
The filter of port 25 does not impact the vast majority of Cox customers, only the small percentage of customers who use third party mail servers. Any software configured to use an SMTP server other than smtp.*.cox.net to deliver email directly to a recipient’s server will not work. An indication of this problem may be a message similar to this in the customer’s mail client. “A time-out occurred while communicating with the server. Account: ‘otheraccount.othersisp.com’, Server: ‘othersmtp.com’, Protocol: SMTP, Port 25, Secure (SSL): No, error Number: 0x800CCC19” Customers using third party email services must configure their email clients to use smtp.*.cox.net to send outbound email. Remember that operating an email or other server on a residential Cox High Speed Internet connection is a violation of our Acceptable Use Policy.
