Understanding sending limits and blocked file extensions of your Comcast email

For information on your Comcast email sending limitations and blocked file extensions, please see the following Xfinity article: Sending Limits and Blocked File Extensions of Your Comcast Email. 

You also may be interested in the following article: How to resolve the issue when an email (from a Comcast domain) sends successfully from ParishSOFT Family Suite,  but the recipients do not receive the email