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extsmail 2.8 (2023-03-22)

  • Fix bug where a child's stderr could be only partly read.

  • Fix bug where stderr could be closed twice.

extsmail 2.7 (2022-10-19)

  • Introduce a test suite for (unusual) child process failure modes.

  • Ensure that all of a child processes's stderr output is read, even if another failure (e.g. the child prematurely closing stdin) occurs beforehand. This makes debugging failing child processes easier.

  • Treat child processes killed by a signal as unsuccessful.

  • Introduce a timeout for child processes that, after seemingly processing a file correctly (e.g. consuming all input, closing the relevant file descriptors), then stall before exiting.

extsmail 2.6 (2022-08-04)

  • On Linux, ensure that a pselect() timeout leads to trying to (re)send messages.

extsmail 2.5 (2021-08-08)

  • Heavily simplify queue processing. As well as making the code easier to understand, extsmail is now more aggressive in trying to send messages. Failure to send a message now causes the next iteration through the queue to start from a random position, ensuring that extsmail can't become stuck on a (temporarily or persistently) unsendable message, no matter the iteration order of the underlying spool directory.

extsmail 2.4 (2020-01-31)

  • Fix a bug whereby a failure in executing a child process could cause an individual mail to be sent more than once and/or an unbounded number of child processes to persist indefinitely.

extsmail 2.3 (2019-10-14)

  • Have autoconf decide whether to use lex/yacc or flex/bison.

  • Add pledge support for extsmail and extsmaild on OS's that support it.

  • If a child process fails, but doesn't print anything to stderr, then format the result more nicely.

  • Build correctly on Linux distributions that identify as GNU rather than Linux.

  • extsmaild -v now prints extsmail's version number.

extsmail 2.2 (2018-11-30)

  • Suggest using "-t" with sendmail in examples (some sendmail clones require this switch).

  • Use "-z,now" when linking.

  • Fix two minor compiler warnings.

extsmail 2.1 (2017-11-25)

  • Build fix for more recent C compilers.

extsmail 2.0 (2014-11-12)

  • Reload configuration file when SIGHUP is received.

  • Added -t option to check a configuration file without running extsmaild.

  • Be more careful to free all file handles.

extsmail 1.9 (2014-06-20)

  • Fix bug which could temporarily cause undue CPU to be consumed when a large file send was cut off in the middle. This didn't prevent mail being sent correctly in the end, but was ugly.

extsmail 1.8 (2014-05-29)

  • Fix bug which caused extsmaild to consume larger amounts of CPU than strictly necessary (a normal user should now be able to run extsmaild for several days before exceeding 1 second of CPU usage).

  • Fix reporting of sent mail on Linux (which previously sent mail correctly, but incorrectly reported failure even when the send was successful).

  • Various fixes to make OS packager's lives easier.

  • Significant code reorganisation to improve readability.

extsmail 1.7 (2014-03-12)

  • Several minor bug fixes spotted by static analysis tools (including memory leaks).

  • More robust handling of corrupt message files.

extsmail 1.6 (2012-11-17)

  • Time out stalled sendmail processes. If a sendmail process hasn't read or written any data for 60 seconds, it is killed and later retried. This stops a stalled sendmail from perpetually blocking extsmail. Although rare, this could happen e.g. when an interface went down while an SSH session was open.

extsmail 1.5 (2012-07-09)

  • Ensure that all messages which can be sent are sent. Some messages may temporarily be unsendable (e.g. because of size) and shouldn't hold up others.

  • Use exponential backoff when retrying. Quite often, a send failure is just a brief blip, so retry quickly, and as retries fail, increase the length of time until the next retry.

  • Add user-configurable notifications for successful / unsuccessful sends. Allows users to easily be notified (e.g. via xosd) if mail has been sent and, if not, how long it has been since everything was sent.

  • Various portability improvements.

  • Improvements to batch mode to bring it in line with daemon mode.

extsmail 1.4 (2011-06-18)

  • Minor bug fixes.

  • Documentation fixes.

extsmail 1.3 (2010-05-30)

  • OS X compile fixes.

  • Fix overly-restrictive configuration permissions check.

  • Recover gracefully from some errors that were previously fatal.

extsmail 1.2 (2009-09-24)

  • Fix build error when using bison.

  • Minor documentation fixes.

extsmail 1.1 (2009-04-29)

  • Fix two frees of possibly uninitialised pointers.

extsmail 1.0 (2009-01-05)

  • extsmaild's modes are now specified via the "-m " switch. In particular the behaviour of the "-d" switch is now obtained with "-m daemon".

  • More intelligent detection of whether a previous instance of extsmaild is running or not.

  • Systematically use syslog.

  • Fix possible race condition between extsmail and extsmaild.

  • Correctly handle SIGPIPE.

extsmail 0.3 (2008-12-11)

  • Make Linux support on a par with BSD (using inotify).

  • Minor error handling / reporting changes.

extsmail 0.2 (2008-11-20)

  • Adds 'timeout' feature to externals.

  • Fixes bug where exec'd externals first parameter was not correctly set.

extsmail 0.1 (2008-11-11)

  • First public release.