I have someone that manages all children's soccer teams email distributions and they are using a Gmail account for that. Recently they started receiving and IP block bounce back error message when sending to the distribution group they have created. I believe there are about 50 email addresses in that list. Does anybody know what's the maximum number of recipients can be when sending an email from Gmail and also what could be causing this IP block era message. Right now the workaround is adding recipients one at a time which seems to work fine it's only when sending to a larger group of uses.
Thanks in advance.