hi! i spent several hours looking for a bug which caused my whole zope system to be hanging. the solution was this: i've been using <dtml-sendmail> to send out emails but due to a network change my smtp-host had changed and i was trying to use a server that wasn't answering to my smtp-request due to some firewall-something. ok, one zope thread was waiting for a reply from the smtp-server but as a consequence all other zope threads were blocked in some way so that i couldn't access my zope system anymore. is that a normal behaviour...?! OS is linux-2.2 ... i would have expected one thread to be waiting and the others to be serving requests as usual... thilo -- mezger@innominate.de innominate AG networking people fon: +49.30.308806-11 fax: -77 web: http://innominate.de pgp: /pgp/tm