Apply by doing:

Apply by doing:
cd /usr/src
patch -p0 < 027_sendmail.patch

And then rebuild and install sendmail:
cd gnu/usr.sbin/sendmail
make depend
make
make install

Restart sendmail if necessary:
kill -HUP `sed q /var/run/sendmail.pid`

Index: gnu/usr.sbin/sendmail/cf/README
===================================================================
RCS file: /cvs/src/gnu/usr.sbin/sendmail/cf/README,v
retrieving revision 1.11
retrieving revision 1.11.2.1
diff -u -r1.11 -r1.11.2.1
--- gnu/usr.sbin/sendmail/cf/README 14 Jan 2002 03:21:39 -0000 1.11
+++ gnu/usr.sbin/sendmail/cf/README 31 Mar 2003 07:07:04 -0000 1.11.2.1
@@ -3572,6 +3572,7 @@
confMAX_MIME_HEADER_LENGTH MaxMimeHeaderLength
[undefined] Maximum length of
certain MIME header field values.
+ If not set, sendmail uses 2048/1024.
confCONNECTION_RATE_THROTTLE ConnectionRateThrottle
[undefined] The maximum number of
connections permitted per second per
@@ -4237,4 +4238,4 @@
8 DNS based blacklists
9 special local rulesets (1 and 2)

-$Revision: 1.11 $, Last updated $Date: 2002/01/14 03:21:39 $
+$Revision: 1.11.2.1 $, Last updated $Date: 2003/03/31 07:07:04 $
Index: gnu/usr.sbin/sendmail/sendmail/README
===================================================================
RCS file: /cvs/src/gnu/usr.sbin/sendmail/sendmail/README,v
retrieving revision 1.11
retrieving revision 1.11.2.1
diff -u -r1.11 -r1.11.2.1
--- gnu/usr.sbin/sendmail/sendmail/README 14 Jan 2002 03:21:40 -0000 1.11
+++ gnu/usr.sbin/sendmail/sendmail/README 31 Mar 2003 07:07:06 -0000 1.11.2.1
@@ -476,6 +476,9 @@
parameter of main().
USE_DOUBLE_FORK By default this is on (1). Set it to 0 to suppress the
extra fork() used to avoid intermediate zombies.
+ALLOW_255 Do not convert (char)0xff to (char)0x7f in headers etc.
+ This can also be done at runtime with the command line
+ option -d82.101.

+-----------------------+
@@ -1735,4 +1738,4 @@
version.c The version number and information about this
version of sendmail.

-(Version $Revision: 1.11 $, last update $Date: 2002/01/14 03:21:40 $ )
+(Version $Revision: 1.11.2.1 $, last update $Date: 2003/03/31 07:07:06 $ )
Index: gnu/usr.sbin/sendmail/sendmail/collect.c
===================================================================
RCS file: /cvs/src/gnu/usr.sbin/sendmail/sendmail/collect.c,v
retrieving revision 1.10
retrieving revision 1.10.2.1
diff -u -r1.10 -r1.10.2.1
--- gnu/usr.sbin/sendmail/sendmail/collect.c 14 Jan 2002 03:21:40 -0000 1.10
+++ gnu/usr.sbin/sendmail/sendmail/collect.c 31 Mar 2003 07:07:07 -0000 1.10.2.1
@@ -436,6 +436,7 @@
OpMode != MD_DAEMON &&
OpMode != MD_ARPAFTP))
{
+ SM_ASSERT(pbp < peekbuf + sizeof(peekbuf));
*pbp++ = c;
c = '.';
}
@@ -447,6 +448,7 @@
else
{
/* push back the ".\rx" */
+ SM_ASSERT(pbp < peekbuf + sizeof(peekbuf));
*pbp++ = c;
*pbp++ = '\r';
c = '.';
@@ -610,6 +612,7 @@
}

/* trim off trailing CRLF or NL */
+ SM_ASSERT(bp > buf);
if (*--bp != '\n' || *--bp != '\r')
bp++;
*bp = '\0';
Index: gnu/usr.sbin/sendmail/sendmail/conf.c
===================================================================
RCS file: /cvs/src/gnu/usr.sbin/sendmail/sendmail/conf.c,v
retrieving revision 1.12
retrieving revision 1.12.2.1
diff -u -r1.12 -r1.12.2.1
--- gnu/usr.sbin/sendmail/sendmail/conf.c 25 Mar 2002 19:16:07 -0000 1.12
+++ gnu/usr.sbin/sendmail/sendmail/conf.c 31 Mar 2003 07:07:07 -0000 1.12.2.1
@@ -330,6 +330,8 @@
DontProbeInterfaces = DPI_PROBEALL;
DoubleBounceAddr = "postmaster";
MaxHeadersLength = MAXHDRSLEN;
+ MaxMimeHeaderLength = MAXLINE;
+ MaxMimeFieldLength = MaxMimeHeaderLength / 2;
MaxForwardEntries = 0;
FastSplit = 1;
#if SASL
Index: gnu/usr.sbin/sendmail/sendmail/deliver.c
===================================================================
RCS file: /cvs/src/gnu/usr.sbin/sendmail/sendmail/deliver.c,v
retrieving revision 1.10
retrieving revision 1.10.2.1
diff -u -r1.10 -r1.10.2.1
--- gnu/usr.sbin/sendmail/sendmail/deliver.c 17 Feb 2002 23:46:27 -0000 1.10
+++ gnu/usr.sbin/sendmail/sendmail/deliver.c 31 Mar 2003 07:07:07 -0000 1.10.2.1
@@ -1140,7 +1140,7 @@
/* Need to account for IPv6 bracketed addresses */
if (*a == '[')
braclev++;
- else if (*a == '[' && braclev > 0)
+ else if (*a == ']' && braclev > 0)
braclev--;
else if (*a == ':' && braclev <= 0)
{
@@ -4660,7 +4660,11 @@
{
pos += bp - buf;
if (c != '\r')
+ {
+ SM_ASSERT(pbp < peekbuf +
+ sizeof(peekbuf));
*pbp++ = c;
+ }
}

bp = buf;
@@ -4700,6 +4704,7 @@
}

/* had a naked carriage return */
+ SM_ASSERT(pbp < peekbuf + sizeof(peekbuf));
*pbp++ = c;
c = '\r';
ostate = OS_INLINE;
@@ -4728,7 +4733,11 @@
else if ((d = sm_io_getc(e->e_dfp,
SM_TIME_DEFAULT))
!= SM_IO_EOF)
+ {
+ SM_ASSERT(pbp < peekbuf +
+ sizeof(peekbuf));
*pbp++ = d;
+ }

if (d == '\n' || d == SM_IO_EOF)
{
@@ -4778,6 +4787,8 @@
mci->mci_mailer->m_eol);
}
ostate = OS_HEAD;
+ SM_ASSERT(pbp < peekbuf +
+ sizeof(peekbuf));
*pbp++ = c;
continue;
}
Index: gnu/usr.sbin/sendmail/sendmail/parseaddr.c
===================================================================
RCS file: /cvs/src/gnu/usr.sbin/sendmail/sendmail/parseaddr.c,v
retrieving revision 1.10
retrieving revision 1.10.2.2
diff -u -r1.10 -r1.10.2.2
--- gnu/usr.sbin/sendmail/sendmail/parseaddr.c 14 Jan 2002 03:21:40 -0000 1.10
+++ gnu/usr.sbin/sendmail/sendmail/parseaddr.c 31 Mar 2003 07:07:07 -0000 1.10.2.2
@@ -574,7 +574,7 @@
};

-#define NOCHAR -1 /* signal nothing in lookahead token */
+#define NOCHAR (-1) /* signal nothing in lookahead token */

char **
prescan(addr, delim, pvpbuf, pvpbsize, delimptr, toktab)
@@ -660,6 +660,7 @@
/* see if there is room */
if (q >= &pvpbuf[pvpbsize - 5])
{
+ addrtoolong:
usrerr("553 5.1.1 Address too long");
if (strlen(addr) > MAXNAME)
addr[MAXNAME] = '\0';
@@ -671,11 +672,15 @@
}

/* squirrel it away */
+#if !ALLOW_255
+ if ((char) c == (char) -1 && !tTd(82, 101))
+ c &= 0x7f;
+#endif /* !ALLOW_255 */
*q++ = c;
}

/* read a new input character */
- c = *p++;
+ c = (*p++) & 0x00ff;
if (c == '\0')
{
/* diagnose and patch up bad syntax */
@@ -730,6 +735,9 @@
}
else if (c != '!' || state == QST)
{
+ /* see if there is room */
+ if (q >= &pvpbuf[pvpbsize - 5])
+ goto addrtoolong;
*q++ = '\\';
continue;
}
@@ -815,6 +823,9 @@
/* new token */
if (tok != q)
{
+ /* see if there is room */
+ if (q >= &pvpbuf[pvpbsize - 5])
+ goto addrtoolong;
*q++ = '\0';
if (tTd(22, 36))
{