Stephan: See: http://www.qmail.org/ for good email information. In specific please search for: * Russell Nelson has a system to allow relaying to any host which authenticates itself through a POP3 connection. Only thing is, it's dependent upon the user to do the right thing, because at least Eudora and Netscape send mail before checking for new mail. You can turn that feature off, but still the user needs to get into the habit of checking for mail before sending mail. Mirko Zeibig has some improvements in an RPM. * David Harris has a similar system to only allow hosts who have authenticated via the POP3 server to relay mail using qmail. This does not require patching the POP or SMTP servers, but is implemented by two programs which cleanly interface into the system, and can work with most any POP or IMAP server. Chris Shaker Stephan Bösebeck wrote:
Hi list!
Is there a way to get SMPT after POP or something so that sendmail (or an other smtp-server) only accepts connections after a POP3-auth? Or is there a way to auth the users who want to send mail?
thx, Stephan