FAQ / General Debugging / Q0074
Q0074
Question
What does the error message remote delivery process count got out of step mean?
Answer
Exim uses subprocesses for remote deliveries; this error means that the master process expected to have a child process running, but found there were none. Prior to release 4.11, this error could be caused by running Exim under strace on a Linux system, because stracing causes children to be “stolen” such that a parent that tries to wait for “any of my children” is told that it has none. Current releases of Exim have code to get round this problem.
FAQ / General Debugging / Q0074