Hi James, > So the topic says it all. I have slack 10.2, and I've just now run > into an interesting issue with postfix-2.4.1 I had the same issue with Slackintosh 11.0 and postfix 2.4.0. The makedef script of postfix checks if the current system is running a 2.6 kernel (epoll was not supported on linux < 2.6). If it does, postfix will build epoll support. Well: Slackintosh 2.6 uses a 2.6 kernel, but due to stability issues glibc was compiled using linux 2.4-headers. Even if your kernel has epoll support, the Slackintosh glibc does not support it. There are 2 solutions: #1 Upgrade to -current. Epoll works fine there #2 Compile postfix with -DNO_EPOLL Regards, Adrian -- RFC 1925: (11) Every old idea will be proposed again with a different name and a different presentation, regardless of whether it works.