I manually added the line to /etc/passwd and it worked. No idea why adduser wasn't doing that though.
-- Could not install postfix - postinst failed to properly create postfix user https://bugs.launchpad.net/bugs/512646 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to postfix in ubuntu. -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs