X-Git-Url: https://git.exim.org/exim.git/blobdiff_plain/0e1ccf449699d15dd9f6d7f16caac24bc70b77f1..94eaf700d71d8bf9a45617c0323fa66fc148aab2:/doc/doc-txt/experimental-spec.txt diff --git a/doc/doc-txt/experimental-spec.txt b/doc/doc-txt/experimental-spec.txt index 74b14fe06..7bb17883c 100644 --- a/doc/doc-txt/experimental-spec.txt +++ b/doc/doc-txt/experimental-spec.txt @@ -2,14 +2,14 @@ From time to time, experimental features may be added to Exim. While a feature is experimental, there will be a build-time option whose name starts "EXPERIMENTAL_" that must be set in order to include the feature. This file contains information -about experimenatal features, all of which are unstable and -liable to incompatibile change. +about experimental features, all of which are unstable and +liable to incompatible change. OCSP Stapling support -------------------------------------------------------------- -X509 PKI certificates expire and can be revoked; to handle this, the +X.509 PKI certificates expire and can be revoked; to handle this, the clients need some way to determine if a particular certificate, from a particular Certificate Authority (CA), is still valid. There are three main ways to do so. @@ -55,12 +55,13 @@ contents are always valid. Exim will expand the "tls_ocsp_file" option on each connection, so a new file will be handled transparently on the next connection. -Exim will check for a validity next update timestamp in the OCSP proof; +Exim will check for a valid next update timestamp in the OCSP proof; if not present, or if the proof has expired, it will be ignored. At this point in time, we're gathering feedback on use, to determine if it's worth adding complexity to the Exim daemon to periodically re-fetch -OCSP files and somehow handling multiple files. +OCSP files and somehow handling multiple files. There is no client support +for OCSP in Exim, this is feature expected to be used by mail clients. @@ -379,7 +380,7 @@ their default locations. You can now run SPF checks in incoming SMTP by using the "spf" ACL condition in either the MAIL, RCPT or DATA ACLs. When -using it in the RCPT ACL, you can make the checks dependend on +using it in the RCPT ACL, you can make the checks dependent on the RCPT address (or domain), so you can check SPF records only for certain target domains. This gives you the possibility to opt-out certain customers that do not want @@ -490,7 +491,7 @@ reject message. When the spf_guess condition has run, it sets up the same expansion variables as when spf condition is run, described above. -Additionally, since Best-guess is not standarized, you may redefine +Additionally, since Best-guess is not standardized, you may redefine what "Best-guess" means to you by redefining spf_guess variable in global config. For example, the following: @@ -545,7 +546,7 @@ In the DATA ACL you can use the new condition After that "$dcc_header" contains the X-DCC-Header. -Returnvalues are: +Return values are: fail for overall "R", "G" from dccifd defer for overall "T" from dccifd accept for overall "A", "S" from dccifd