On Mar 19, 11:40 am, Andrius <burl...@web.de> wrote: > Hi, > > how to configure Sendmail to send a messages through ISP SMTP server? > Thank you. > > Regards, > Andrius > Andrius, I'm not familiar with the sendmail installation on Debian, but if it comes with a .mc file, you should look to edit the SMART_HOST directive: define(`SMART_HOST',`smtp.isp.org') where you define the name of your ISP's smtp server. -mark