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mbrinkers

Re:SMTP Smuggling – Spoofing Emails Worldwide on Friday December 22, 2023 @04:18AM (#38732442)
[quote] With all Postfix versions, "smtpd_data_restrictions = reject_unauth_pipelining" will stop the published exploit. [/quote]

https://www.postfix.org/smtp-smuggling.html

I changed the title. Although I heard from someone involved that the intermediates really should be revoked in 7 days. Let's wait and see.