Pedro I. Sanchez wrote: : Note that Rogers requires you to login before accepting any e-mail. Is : your SMTP service configured to handle this? I know this is true if you're on the Internet at large and relaying through them, but if the machine is connected to a Rogers cable line, doesn't it relay automagically? Regardless, taking a look at the log lines, sendmail is trying to send to localhost and failing. This is because sendmail doesn't seem to be listening on localhost, as per the netstat output provided. That needs to be fixed long before Rogers becomes a problem. I would suggest, unfortunately, that the OP move away from Sendmail. Though I haven't seen any significant security vulnerabilities from it lately, its configuration file is archaic and difficult to understand. There are many other drop-in replacements that exist (exim, postfix), a number of replacements that require a bit of extra work (qmail), and other SMTP clients-that-run-as-daemons (ssmtp), all as viable alternatives that will be easier to maintain. - Damian