X-Git-Url: https://git.netwichtig.de/gitweb/?a=blobdiff_plain;ds=sidebyside;f=doc%2Fdoc-txt%2Fexperimental-spec.txt;h=5e0b044279828c9999a52010885c1e36a9abfeb4;hb=c4b4086235b1d5e21fcf1ad72a1b05813e15dcbd;hp=e4a9301c312bf424f2cde3db4d79452cf6abd117;hpb=afaf5a50b05810d75c1f7ae9d1cd83697815a997;p=user%2Fhenk%2Fcode%2Fexim.git

diff --git a/doc/doc-txt/experimental-spec.txt b/doc/doc-txt/experimental-spec.txt
index e4a9301c3..5e0b04427 100644
--- a/doc/doc-txt/experimental-spec.txt
+++ b/doc/doc-txt/experimental-spec.txt
@@ -672,7 +672,7 @@ Logging protocol unusual states
 An extra log_selector, "protocol_detail" has been added in the default build.
 The name may change in future, hence the Experimenal status.
 
-Currrently the only effect is to enable logging, under OpenSSL,
+Currrently the only effect is to enable logging, under TLS,
 of a TCP RST received directly after a QUIT (in server mode).
 
 Outlook is consistently doing this; not waiting for the SMTP response
@@ -680,6 +680,42 @@ to its QUIT, not properly closing the TLS session and not properly closing
 the TCP connection.  Previously this resulted is an error from SSL_write
 being logged.
 
+
+
+Limits ESMTP extension
+---------------------------------------------------------------
+Per https://datatracker.ietf.org/doc/html/draft-freed-smtp-limits-01
+
+If compiled with EXPERIMENTAL_ESMTP_LIMITS=yes :-
+
+As a server, Exim will advertise, in the EHLO response, the limit for RCPT
+commands set by the recipients_max main-section config option (if it is set),
+and the limit for MAIL commands set by the smtp_accept_max_per_connection
+option.
+
+Note that as of writing, smtp_accept_max_per_connection is expanded but
+recipients_max is not.
+
+A new main-section option "limits_advertise_hosts" controls whether
+the limits are advertised; the default for the option is "*".
+
+As a client, Exim will:
+
+ - note an advertised MAILMAX; the lower of the value given and the
+ value from the transport connection_max_messages option is used.
+
+ - note an advertised RCPTMAX; the lower of the
+ value given and the value from the transport max_rcpt option is used.
+ Parallisation of transactions is not done if due to a RCPTMAX, unlike
+ max_rcpt.
+
+ - note an advertised RCPTDOMAINMAX, and behave as if the transport
+ multi_domains option was set to false.  The value advertised is ignored.
+
+Values advertised are only noted for TLS connections and ones for which
+the server does not advertise TLS support.
+
+
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 End of file
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