Having trouble responding/sending emails out but no problem receiving emails.

I am having issues responding/sending emails out using xfinity email on my web browser and I am getting this message: "Error: this is the message The connection to remote server imap-int-west.email.comcast.net was refused or timed out while attempting to connect. Please try again later." I have tried logging into multiple devices, logging out and logging back in, and waiting an hour before retrying. I was wondering if anyone had a solution or advice to solve this issue. This started happening this morning. My family has tried sending messages out on their own emails and was successful so this must be an issue on my account.