I am using outlook 2010, windows 8 on an Asus UX32A latop. I have an intermittent problem in that, when I go abroad, from some wireless networks (hotels or otherwise) I can send emails and others (increasingly more often), I cant. I have searched the web and this seems to be a common problem with port 25 (outgoing server - SMTP) blocking being frequently identified as the culprit. However, I have tried a number of alternative ports to 25, but thus far to no avail.
If anyone out there has any ideas I would greatly appreciate them!