Finally, we are running qmaiil on all our mail servers, so thanks to everyone here who has helped me figure stuff out. It's mostly going ok, and there were no major customer hassles after the switchover. We have noticed that performance has increased dramatically. We are using inhouse LDAP patches to do our user/password lookups, so I will post our patches when our site has been cleaned up (They are nothing on the scale of Andres though, but they may be useful to someone), and we are over any teething problems. We did have one issue by the way, and I'm curious if anyone else has experienced this. We are running the main mail server on Linux. When we tried to upgrade before, I found that qmail-popup sessions were not timing out. This time around I found (with strace) that the select call in timeoutread and timeoutwrite was counting down to zero, but then it was resettting to the original timeout value somehow. So, it would never exit! At the moment I have made a hack to fix this, but I really need to know if there is a "proper" solution to this issue. I can post more details if anyone wants. Regards, Richard Aldridge, Internet Systems Engineer, Cable Internet.
