On 7/2/19 3:03 PM, David Mehler wrote:
Jul 2 14:59:44 mail postfix/smtp[14345]: Untrusted TLS connection
established to gmail-smtp-in.l.google.com[173.194.68.27]:25: TLSv1.3
with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519
server-signature RSA-PSS (2048 bits) server-digest SHA256
I encountered the same thing ... here's how I fixed it.
I added the following to main.cf:
smtp_tls_CApath = /etc/ssl/certs
smtpd_tls_CApath = /etc/ssl/certs
https://www.geekyramblings.net/2019/02/28/trusted-tls-with-postfix/
david
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