A link to "Configure Outlook Express to Use Port 587" will be sent via email.
We hate spam. The information you've entered will not be shared or sold.
Are you having problems sending mail? The problem could be that the port number you’re sending your messages from is blocked. Port numbers are used to determine where information, like email, is coming from and going to. Your default port is 25, but you can change it to port 587 if you’re experiencing issues. Follow these simple steps to change your port 25 settings to port 587 in Outlook Express.
Open Outlook Express, select the Tools menu and then click Accounts.
Click the Mail tab. Select the Comcast account name from the list and click Properties.
Select the Servers tab and verify you have smtp.comcast.net in the Outgoing mail (SMTP) field. Click to put a check in the My server requires authentication option and then click the Settings button. Make sure the Use same settings as my incoming mail server is selected and click OK.
Select the Advanced tab. In the Server Port Numbers section at the top, delete the value inside the Outgoing server (SMTP) field and type 587 in this field. Click OK.
Click Apply and then OK. You’re now configured to use port 587 to send email.
Have you changed the port number, but are still experiencing problems with your email? Our tech experts at XFINITY Signature Support can help. With our affordable, premium support service, you can call 24/7 to get solutions to your problems and even have us fix your issues remotely, without you having to leave your home. Learn more about XFINITY Signature Support, and how you can get the most from your computer, email and more.
Take a few minutes to make sure you have set up Outlook Express with Comcast correctly. Follow some simple steps at XFINITY Help & Support to verify your settings.
Learn how easy it is to clear your history, cookies and cache in Firefox. Visit XFINITY Internet Help & Support for details.
Find possible explanations for why your home phone may ring, but no one is there.
Our customer guaranteeis our promise to you.Learn more