I cannot send emails from a couple of my workstations. Really odd, because I have 12 machines here, 10 work ok, but these two are unable to send out emails to whatever recepient. Same is with Thunderbird and Outlook Express. Is there some special protocol or something else I should enable or what?
Really odd, I agree with you. It looks like maybe these clients are not configured properly? Because I really don't see how would it be possible for email sending not to work, if everything else works (I suppose file/printer sharing, internet sharing etc. works with no problems, as you haven't mentioned anything but email problem).