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kumomta/docs
Wez Furlong 20ad646514 smtp_server: move listener domain cache to be scoped per connection
This fixes an issue where the cache being scoped globally could allow
the same IP/domain combination to appear to be satisfied by an earlier
authenticated session with the same IP/domain combination, for a period
of 60 seconds (the default TTL that we used for that cache).

This commit moves the cache to be smaller and more focused in scope;
now each session remembers the last few domains (bounded, to avoid
a trivial DoS by a malicious client) made on it.

closes: https://github.com/KumoCorp/kumomta/issues/320
2024-12-04 08:23:46 -07:00
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