Hi,
I'm still using sendmail (and OpenBSD's package) to handle smtp at
$DAYJOB
I recently got complains from colleagues who didn't receive some
emails from the administrative part of the University.
After some digging I found out that with all the modern anti-spam and
anti-phishing filtering that large organisations are doing, the
missing mails arrive here with a hop count of more than 25 (sendmail's
default value for at least 30 years) and get rejected.
A bit of research show that postfix has been using 50 since
1999. OpenSMTPd is using 100.
So the patch below (conservatively) bumps the default max hop count to
50. ok ?
Index: Makefile
===================================================================
RCS file: /cvs/OpenBSD/ports/mail/sendmail/Makefile,v
retrieving revision 1.50
diff -u -p -u -r1.50 Makefile
--- Makefile 3 Oct 2022 22:33:33 -0000 1.50
+++ Makefile 17 Jan 2023 17:35:15 -0000
@@ -7,6 +7,7 @@ PKGNAME-main = sendmail-${V}
PKGNAME-libmilter = libmilter-${V}
FULLPKGNAME-libmilter = libmilter-${V}
FULLPKGPATH-libmilter = mail/sendmail,-libmilter
+REVISION-main = 0
SHARED_LIBS = milter 4.0
Index: patches/patch-cf_m4_proto_m4
===================================================================
RCS file: /cvs/OpenBSD/ports/mail/sendmail/patches/patch-cf_m4_proto_m4,v
retrieving revision 1.5
diff -u -p -u -r1.5 patch-cf_m4_proto_m4
--- patches/patch-cf_m4_proto_m4 11 Mar 2022 19:34:56 -0000 1.5
+++ patches/patch-cf_m4_proto_m4 17 Jan 2023 17:31:34 -0000
@@ -1,9 +1,18 @@
-net/uucp uses login _uucp
+net/uucp uses login _uucp and bump MaxHopCount
Index: cf/m4/proto.m4
--- cf/m4/proto.m4.orig
+++ cf/m4/proto.m4
-@@ -746,6 +746,7 @@ ifdef(`_USE_CT_FILE_', `', `#')Ft`'ifdef(`confCT_FILE'
+@@ -307,7 +307,7 @@ _OPTION(TempFileMode, `confTEMP_FILE_MOD
+ _OPTION(MatchGECOS, `confMATCH_GECOS', `False')
+
+ # maximum hop count
+-_OPTION(MaxHopCount, `confMAX_HOP', `25')
++_OPTION(MaxHopCount, `confMAX_HOP', `50')
+
+ # location of help file
+ O HelpFile=ifdef(`HELP_FILE', HELP_FILE, `MAIL_SETTINGS_DIR`'helpfile')
+@@ -746,6 +746,7 @@ ifdef(`_USE_CT_FILE_', `', `#')Ft`'ifdef
Troot
Tdaemon
ifdef(`_NO_UUCP_', `dnl', `Tuucp')
--
Matthieu Herrb
