I'm started with Charter and I'm still using a @charter.net address. We have 2 or 3 groups of paople we send groups emails to. 8 people max in the groups but are now getting the above error for about the last year to 1 1/2 years when sending to these groups. If i break them down to 2 or 3 person groups then they will go thru. Why is this happening? I use Outlook for my mail for the last 6 years and this just started to happen recently.