On Sat, Oct 04, 2025 at 10:41:45AM -0400, Gerard Seibert via Postfix-users
wrote:
> I recently updated my system to MySQL 9.1, but now Postfix is unable to
> connect. It seems that my version of Postfix, 3.11-20250818, does not
> support the "caching_sha2_password" authentication method. Since "
> *mysql_native_password*" has been removed in MySQL 9.1, I'm unable to use
> that option either. Will Postfix be updated to support "
> *caching_sha2_password*"? Alternatively, is there a workaround available
> besides uninstalling MySQL 9.1 and reverting to version 8.4? Thank you!
Postfix knows nothing about MySQL authentication, that's the business of
the MySQL client library. Postfix expects to connect to tha database
with a username and password, see mysql_table(5).
--
Viktor. 🇺🇦 Слава Україні!
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