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

Hi List, hi Jeremy,

On 10/30/25 15:28, Jeremy Harris via Exim-dev wrote:
> It is possible.  Other reports of usage would help.

we also have ident lookups enabled in general (with some exceptions 
collected in the past 2 decades). Main purpose slow down bad behaving 
(aka spam) servers as they do not provide ident in general. However most 
others also drop such connections nowadays. That's why we decreased the 
"teergrubing" from 30s to 10s some years ago.

I used to think that ident calls are part of the SMTP RFC. But I now 
think I made this up from the Exim docs where "RFC" is stated but 
rfc1314. :-)

I also vote for keeping the feature unless it causes maintenance issues 
like avoiding code reorganizations or security issues.

Best regards,
-- 
Patrick Cernko <[email protected]> +49 681 9325 5815
Joint Scientific IT and Technical Service
Max-Planck-Institute für Informatik & Softwaresysteme