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-rw-r--r--doc/doc-docbook/spec.xfpt7
1 files changed, 7 insertions, 0 deletions
diff --git a/doc/doc-docbook/spec.xfpt b/doc/doc-docbook/spec.xfpt
index c6b1e1bb0..8dab2a4d9 100644
--- a/doc/doc-docbook/spec.xfpt
+++ b/doc/doc-docbook/spec.xfpt
@@ -5598,6 +5598,13 @@ find that they send unqualified addresses. The two commented-out options:
show how you can specify hosts that are permitted to send unqualified sender
and recipient addresses, respectively.
+The &%log_selector%& option is used to increase the detail of logging
+over the default:
+.code
+log_selector = +smtp_protocol_error +smtp_syntax_error \
+ +tls_certificate_verified
+.endd
+
The &%percent_hack_domains%& option is also commented out:
.code
# percent_hack_domains =