Re: Exim 4.100 without identd (RFC 1413) support?

On 2025/10/30 2:10 PM, Heiko Schlichting via Exim-dev wrote:
> I was surprised to learn that with commit 106c3eb (via merge eb39a35),
> support for identd according to RFC 1413 was completely removed for the
> next Exim version (4.100). Was there an announcement or discussion about
> this that I missed?
> 
> | JH/02 Support for identd (RFC 1413) lookups on received connections is removed.
> |       This includes the main options "rfc1413_query_timeout" and
> |       "rfc1413_hosts", the debug option "ident" and the log_selector name
> |       "ident_timeout"; using any will result in an error.
> |       The default options had the lookup disabled since 4.86.
> 
> We need and use identd

You are the first user I have ever heard of.  That is why it was removed; it
appeared to be a moribund feature.

> when emails are sent from the university's large
> central servers, which have approximately 70,000 interactive Linux
> accounts, to mail relay servers running Exim. Identd allows us to identify
> the originating account. Removing this feature, which has been used for
> many years, is causing problems

To clarify: you are already running Exim in production with the post-4.99 commit
that removes identd support?
> Is there any chance that the removal of identd will be reversed?
It is possible.  Other reports of usage would help.
-- 
Cheers,
   Jeremy