Hi. I'm still a newbie to Zope, so forgive me if this is obvious to others... I've installed the KM|netNews product and everything is working correctly EXCEPT everytime I enter a new article and click "submit" (which should then email the person in the "article_notify" property of the KMArticlestore) I get a SMTP 501 error: sender's email must contain a valid domain. I know my MailHost is configured correctly, because I can use sendmail elsewhere. Since I'm getting the SMTP error, mailhost is obviously in the path, right? Since it's saying "sender's email" it's a problem parsing what was received by the form field, right? UGH. I've looked everywhere, even hard-coded the info - still doesn't work. Can anyone PLEASE help me? Config info: running latest Zope, Apache/Linux box, latest KM|netNews product, Mail Host that shipped w/Zope Thanks in advance, Liz Pelletier