On 12/22/23 10:37, Bjoern Franke via Exim-users wrote:
> exim is not mentioned, so it's not affected?
There's discussion as to whether it's really a useful attack.
Exim cannot be used as the first relay, but can be the second site.
As is commonly the case, the major issue is compatibility with
non-standards-conforming systems which *was* needed in the past.
Tightening the screws may break existing installations.
Some changes in that direction are already available.
--
Cheers,
Jeremy
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