The Mythic Port 25

Xfinity blocks several ports including port 25, as explained here . I need port 25 unblocked. Apparently that isn't something Xfinity phone support can do. If you are an employee who even knows what port forwarding is and you see this please for the love of god help. Basically same situation as this user explained here.

@XfinityCSAEmail you seem like the go to person for this. This is a problem with home network not email, despite the fact that port 25 is frequently used for MX. 

Thanks