Comcast SMPT email service
I'm the moderator for a private mailing list. I developed a program to distribute approved emails to the appropriate list. Since I have comcast for internet, I am trying to send them out via smtp.comcast.net port 587 using TLS. What Iam seeing is that the emails that I send seem to disappear. I have done this before without any issues. I even tried to send it to my sender comcast email id, and it went into the spam. So is comcast blocking such email being sent out ? If so, how to get it unblocked?