Getting the correct SMTP address
I'm new to Portable TB. I've recently been away from home for three weeks, during which I've visited friends and internet cafes. I've had no trouble downloading e-mails with portable TB, but always ran into trouble for sending. Setting my pertable TB to work with the SMTP address used by the host computer's ISP worked just fine. However, many people don't know what their SMTP address is, and even if they do, I don't feel comfortable asking them to reveal their password. I took to using web-mail for replies, but obviously this is not ideal.
Since writing the above I've had a look at smtp.com, but there's something I don't understand.