On 05/01/2023 11:49, Andrew C Aitchison via Exim-dev wrote:
> I have been reading about exim message ids (for enhancement
> I see that the code has both
> src/config.h.defaults:#define MAX_LOCALHOST_NUMBER 256
> src/exim.h-#if BASE_62 == 62
> src/exim.h:# define LOCALHOST_MAX 16
> src/exim.h:# define LOCALHOST_MAX 10
MAX_LOCALHOST_NUMBER appears to be historical and redundant.
The only mentions are config.h.defaults and comments in two
makefiles for no-longer-supported platforms.
It's use went away in 4.14 (about January 2003) when the
message-id stuff started tracking time resolution rather
than "how many IDs are probably safe in a slot",
and it wasn't properly cleaned out.
[ I have a git repo made-up from old releases; if anyone
needs to spelunk I'll work out how to make it visible again.
If anyone knows how to safely *prefix* versions to a git
repo history, they could appear in the main repo -
but I doubt that can be done. ]
Now would be a good time, since you've noticed it.