V. Users And Domains With Postfix, Courier, MySQL (Deb. Etch) Relay Mails to outside? Hello, I followed the specified howto until my aim is reached: http://howtoforge.com/virtual_users_and_domains_with_postfix_debian_etch This aim was just the mail-server, without spam/antivirus solution. So: pages one to three. I receive mails without any problems, but: I just can't send mails from outlook or any other client to outside. Outside means: Other domains, not hosted by this server. If I use squirrelmail for sending mails to other domains, it works without any problems to, like receiving them. I tried other settings in /etc/pam.d/smtp, I tried postfix not running chrooted (smtpd). But nothing works. Has anybody suggestions, to remove this error? I DO NOT want an open relay server, but who want this? I want to authenticate with my credentials, so: email-adress and the password. I don't want pop before smtp, because I'm using imap. If any logs/configs are required, please let me know, i'll post them. edit: I tried some things from this page, too: http://small.dropbear.id.au/myscripts/postfixmysql.html /edit Can anybody help me? ps: sorry for my english, I'm native german.