Code for verify=header_names_ascii

[exim.git] / doc / doc-docbook / spec.xfpt

diff --git a/doc/doc-docbook/spec.xfpt b/doc/doc-docbook/spec.xfpt
index edb577a11e51716ef0b280e9d7acff6361ba3624..28c2ceb621f7edbe1b22b75312f2a6e547a9d8b3 100644 (file)
--- a/doc/doc-docbook/spec.xfpt
+++ b/doc/doc-docbook/spec.xfpt
@@ -11978,7 +11978,7 @@ other times, this variable is false.
 It is likely that you will need to coerce DNSSEC support on in the resolver
 library, by setting:
 .code
-dns_use_dnssec = 1
+dns_dnssec_ok = 1
 .endd
 
 Exim does not perform DNSSEC validation itself, instead leaving that to a
@@ -13190,10 +13190,10 @@ See also the &'Policy controls'& section above.
 .row &%disable_ipv6%&                "do no IPv6 processing"
 .row &%dns_again_means_nonexist%&    "for broken domains"
 .row &%dns_check_names_pattern%&     "pre-DNS syntax check"
+.row &%dns_dnssec_ok%&               "parameter for resolver"
 .row &%dns_ipv4_lookup%&             "only v4 lookup for these domains"
 .row &%dns_retrans%&                 "parameter for resolver"
 .row &%dns_retry%&                   "parameter for resolver"
-.row &%dns_use_dnssec%&              "parameter for resolver"
 .row &%dns_use_edns0%&               "parameter for resolver"
 .row &%hold_domains%&                "hold delivery for these domains"
 .row &%local_interfaces%&            "for routing checks"
@@ -13814,6 +13814,17 @@ This option controls whether or not an IP address, given as a CSA domain, is
 reversed and looked up in the reverse DNS, as described in more detail in
 section &<<SECTverifyCSA>>&.
 
+
+.option dns_dnssec_ok main integer -1
+.cindex "DNS" "resolver options"
+.cindex "DNS" "DNSSEC"
+If this option is set to a non-negative number then Exim will initialise the
+DNS resolver library to either use or not use DNSSEC, overriding the system
+default. A value of 0 coerces DNSSEC off, a value of 1 coerces DNSSEC on.
+
+If the resolver library does not support DNSSEC then this option has no effect.
+
+
 .option dns_ipv4_lookup main "domain list&!!" unset
 .cindex "IPv6" "DNS lookup for AAAA records"
 .cindex "DNS" "IPv6 lookup for AAAA records"
@@ -13844,16 +13855,6 @@ to set in them.
 See &%dns_retrans%& above.
 
 
-.option dns_use_dnssec main integer -1
-.cindex "DNS" "resolver options"
-.cindex "DNS" "DNSSEC"
-If this option is set to a non-negative number then Exim will initialise the
-DNS resolver library to either use or not use DNSSEC, overriding the system
-default. A value of 0 coerces DNSSEC off, a value of 1 coerces DNSSEC on.
-
-If the resolver library does not support DNSSEC then this option has no effect.
-
-
 .option dns_use_edns0 main integer -1
 .cindex "DNS" "resolver options"
 .cindex "DNS" "EDNS0"
@@ -27982,6 +27983,23 @@ This condition checks whether the sending host (the client) is authorized to
 send email. Details of how this works are given in section
 &<<SECTverifyCSA>>&.
 
+.new
+.vitem &*verify&~=&~header_names_ascii*&
+.cindex "&%verify%& ACL condition"
+.cindex "&ACL;" "verifying header names only ASCII"
+.cindex "header lines" "verifying header names only ASCII"
+.cindex "verifying" "header names only ASCII"
+This condition is relevant only in an ACL that is run after a message has been
+received, that is, in an ACL specified by &%acl_smtp_data%& or
+&%acl_not_smtp%&.  It checks all header names (not the content) to make sure
+there are no non-ASCII characters, also excluding control characters.  The
+allowable characters are decimal ASCII values 33 through 126.
+
+Exim itself will handle headers with non-ASCII characters, but it can cause
+problems for downstream applications, so this option will allow their
+detection and rejection in the DATA ACL's.
+.wen
+
 .vitem &*verify&~=&~header_sender/*&<&'options'&>
 .cindex "&%verify%& ACL condition"
 .cindex "&ACL;" "verifying sender in the header"
@@ -34332,7 +34350,8 @@ The message that is written is &"spool file is locked"&.
 .next
 .cindex "log" "smtp confirmation"
 .cindex "SMTP" "logging confirmation"
-&%smtp_confirmation%&: The response to the final &"."& in the SMTP dialogue for
+.cindex "LMTP" "logging confirmation"
+&%smtp_confirmation%&: The response to the final &"."& in the SMTP or LMTP dialogue for
 outgoing messages is added to delivery log lines in the form &`C=`&<&'text'&>.
 A number of MTAs (including Exim) return an identifying string in this
 response.