X-Git-Url: https://git.exim.org/exim.git/blobdiff_plain/8d69247061599b35b60308ca4b75ba529b8dcba2..2d75eab6bb3ddf9000613972cd6394c2580a1de7:/doc/doc-txt/experimental-spec.txt?ds=sidebyside diff --git a/doc/doc-txt/experimental-spec.txt b/doc/doc-txt/experimental-spec.txt index 8192f3d76..d57cbf903 100644 --- a/doc/doc-txt/experimental-spec.txt +++ b/doc/doc-txt/experimental-spec.txt @@ -1154,9 +1154,16 @@ support to date has not made these checks. If built with EXPERIMENTAL_CERTNAMES defined, code is included to do so for server certificates, and a new smtp transport option -"tls_verify_cert_hostname" supported which takes a list of -names for which the checks must be made. The host must -also be in "tls_verify_hosts". +"tls_verify_cert_hostnames" supported which takes a hostlist +which must match the target host for the additional checks must be made. +The option currently defaults to empty, but this may change in +the future. "*" is probably a suitable value. +Whether certificate verification is done at all, and the result of +it failing, is stll under the control of "tls_verify_hosts" nad +"tls_try_verify_hosts". + +The name being checked is that for the host, generally +the result of an MX lookup. Both Subject and Subject-Alternate-Name certificate fields are supported, as are wildcard certificates (limited to @@ -1166,7 +1173,7 @@ component FQDN). The equivalent check on the server for client certificates is not implemented. At least one major email provider is using a client certificate which fails this check. They do not retry either without -hte client certificate or in clear. +the client certificate or in clear. It is possible to duplicate the effect of this checking by creative use of Events.