I cannot send email from my outlook but I can received them

@XfinityMarshante​ No I did not update my password.  This has been happening since Friday.  The emails will send during the night but not currently. The port is 465. This is happening on my laptop and my phone 

Thank you for the details @user_idavw2. Have you tried sending an email from the Xfinity site to see if it goes through? You can access your email by going to https://www.xfinity.com/email.  I have also attached an article Set up your Xfinity Email address with an email program

Yes I can send email through the xfinity portal but prefer Outlook on my computer and using my iphone app

@user_idavw2, can you try re-entering the password in Outlook and your phone, and then try sending an email? 

Hey good day user_vrlfy9 👋 Thank you for letting us know that you've been experiencing something similar! If Outlook is not allowing you to send emails from your Comcast email address, it may be due to incorrect settings or the use of blocked port 25. To resolve this, ensure you are using the correct outgoing mail server settings:

- Outgoing Mail Server: smtp.comcast.net
- Port Number: 587 (SMTP) or 465 (SMTPS)
- Encryption: TLS (or SSL if TLS isn't available).

Additionally, you'll want to verify that third-party access is enabled on the Xfinity Email website. Please try these steps and let me know if that helps 👍

@XfinitySeth​ I have tried all those things you suggested to no avail.  This started on Friday and has continued

@user_idavw2 We are limited in troubleshooting third-party email clients.  You can also try changing the port from 465 to 587. If that doesn't work, then for further assistance, you would need to contact the manufacturer of the email client. 

Well you are not of any help

@XfinityMarshante​ This has not been an issue for the 25 years we had Xfinity 

I am not sure how to fix this issue that just recently started

@user_idavw2 Unfortunately, we discontinued our email app back in 2021.  You can access the web portal through the Xfinity app to get to your Xfinity email.