I m new to linux world & all my previouse mail servers were ms exchange servers. i jst installed a sendmail server & it seems to work fine after i managed to tweak some config files ... now my last problem is how to allow users who are using internet from thier homes or offices & who have accounts on this mail server to use it to send mail bcos sendmail doesn't allow relaying for them so far. from the documentation, i could see that sendmail can be configured to relay by specifying the ip address of the trusted networks or the domain but that jst doesn't work for me since i want them to be able to send mail freely from whatever location the users were. I will be very pleased with some help. thanks in advance.