Trouble sending email when away from home

[rhoppert11]

When I'm at home with my Galaxy 3S I have no trouble sending and receiving emails. When I am anywhere else I can receive emails, but I cannot send them (says sending message failed). Any ideas on why this is and how I can fix it so I can send outgoing emails on my phone from anywhere?

 

[walterwood44]

Not sure if this is your problem but we had this problem and our home ISP is Road Runner. RR will not allow any messages to be sent except when we were connected to and logged into their network. We switched to Gmail and no more problems.