X-Git-Url: https://git.exim.org/exim.git/blobdiff_plain/c2046b73572e3b2ea94b4bf7fea9810b73d606c4..2b68e140a846db4f24f4e29dfa16db73dc35c37f:/src/src/host.c

diff --git a/src/src/host.c b/src/src/host.c
index f69e0341a..e43b507e5 100644
--- a/src/src/host.c
+++ b/src/src/host.c
@@ -370,15 +370,18 @@ while ((name = string_nextinlist(&list, &sep, NULL, 0)))
 *        Extract port from address string        *
 *************************************************/
 
-/* In the spool file, and in the -oMa and -oMi options, a host plus port is
-given as an IP address followed by a dot and a port number. This function
-decodes this.
+/* In the -oMa and -oMi options, a host plus port is given as an IP address
+followed by a dot and a port number. This function decodes this.
 
 An alternative format for the -oMa and -oMi options is [ip address]:port which
-is what Exim 4 uses for output, because it seems to becoming commonly used,
+is what Exim uses for output, because it seems to becoming commonly used,
 whereas the dot form confuses some programs/people. So we recognize that form
 too.
 
+The spool file used to use the first form, but this breaks with a v4mapped ipv6
+hybrid, because the parsing here is not clever.  So for spool we now use the
+second form.
+
 Argument:
   address    points to the string; if there is a port, the '.' in the string
              is overwritten with zero to terminate the address; if the string