Sean Reifschneider <[EMAIL PROTECTED]> added the comment:
smtplib is for sending messages via SMTP, not for testing to see if a
user is behind an ISP that is incorrectly blocking outgoing SMTP
connections. I would argue the "incorrectly" because they are dropping
rather than rejecting the connec
Martin v. Löwis added the comment:
I recommend that you stay with non-blocking sockets, and use select/poll
on all sockets. Then you can simultaneously check multiple servers, and
select will tell you which ones you got connected to. For this
application, putting a time-out on the socket and doin
New submission from Nathan Duran:
The following code:
import smtplib
test = smtplib.SMTP('mail.host.com')
will hang the entire script for about ten minutes when run on a machine
which is connected to the internet via an ISP who blocks port 25 (which is
pretty much all of them these days). Cl
