sendmail X is a modularized message transfer system consisting of five (or more) persistent processes, four of which are multi-threaded. A central queue manager controls SMTP servers and SMTP clients to receive and send email messages, an address resolver provides lookups in various maps (including DNS) for mail routing, and a main control program starts the others processes and watches over their execution. The queue manager organizes the flow of messages through the system and provides measures to avoid overloading the local or remote systems by implementing a central control instance. sendmail X is simple to configure using a syntax that is easy to understand and use. It is intended to be used as a secure and efficient mail gateway. It does not provide any mail content modification capabilities such as address masquerading.
|Tags||Communications Email Mail Transport Agents|
Release Notes: This version has better error logging for STARTTLS problems and a libpmilter fix.
Release Notes: A memory leak in the thread library that is used for smar and qmgr was fixed (as it didn't "detach" threads). Some minor enhancements were made.
Release Notes: This release fixes the handling of the empty sender address for protected_recipients. It plugs a memory leak in the address resolver that has been found using libumem(3LIB) and other memory debuggers.