Interesting. Other people are reporting on their forums that port 25 is allowed only to their own mail servers (http://www5.sonera.fi/keskustele/viewtopic.php?f

Interesting. Other people are reporting on their forums that port 25 is allowed only to their own mail servers (http://www5.sonera.fi/keskustele/viewtopic.php?f=57&t=102 http://www5.sonera.fi/keskustele/viewtopic.php?f=57&t=10... ). More similar references are easily found using google.