Originally Posted by pranu
AHA! Is your ISP messing with your outgoing email? Seems to be from this message!
Just to make sure you have all bases covered and call your ISP to double check before you condemn poor old outlook.
In DSM I believe Comcast blocks port 25 (much like Cox here
) - I wonder if they additionally auto redirect everyone to the hosting companies 587 as you mentioned.
My ISP is Earthlink on a Qwest provisioned DSL line. Yes, earthlink blocks port 25 which is why I use port 587 directly to
my hosting provider. It is not a port problem as the random accounts that get to be the sender are all on port 587, just different servers and or IP addresses.
FWIW, the local MSO is Mediacom, not Comcast and I don't have anything to do with them.