
Originally Posted by
dezignguy
Well, if you're sure that it's not being blocked by your local firewall or your server firewall... then your ISP is likely blocking port 25... 'for spam control reasons'. Try running exim on a different port (say port 26 - though some Isps are also blocking that port), so try something like 225 as well.
And there was some discussion recently somewhere (I forget exactly where) regarding a few isps apparently blocking port 110 as well... (Which is totally stupid, but it's their customers).
So, you might be a victim of this... complain, deal with it, or switch isps...