X-Git-Url: https://iankelling.org/git/?a=blobdiff_plain;f=mail-setup;h=08ec7aed2126611e4641cde9924e0dad789e2433;hb=50f25d1eec109c4596cfc638c9a7c98da0f0b5d0;hp=776f3e68aefd6d4b929e40f2cf04c57b09aab081;hpb=0f9a999aa601cd77343a3e08cf0c6c4f9f943813;p=distro-setup
diff --git a/mail-setup b/mail-setup
index 776f3e6..08ec7ae 100755
--- a/mail-setup
+++ b/mail-setup
@@ -1,7 +1,23 @@
#!/bin/bash
# * intro
-# Copyright (C) 2019 Ian Kelling
-# SPDX-License-Identifier: AGPL-3.0-or-later
+
+# Program to install and configure Ian's email related programs
+# Copyright (C) 2024 Ian Kelling
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see .
+
+# SPDX-License-Identifier: GPL-3.0-or-later
# todo:
# on bk (and fsf servers that run multiple exim4 daemons, eg eximfsf2 and eximfsf3),
@@ -2037,7 +2053,7 @@ EOF
ssl = required
# this is the same as the certbot list, i check changes in /a/bin/ds/filesystem/usr/local/bin/check-lets-encrypt-ssl-settings
ssl_cipher_list = ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384
-ssl_protocols = TLSv1.2
+ssl_min_protocol = TLSv1.2
ssl_prefer_server_ciphers = no
protocol lmtp {
@@ -2069,6 +2085,24 @@ EOF
rm -fv /etc/dovecot/conf.d/20-lmtp.conf # file from prev version
cat >>/etc/dovecot/local.conf <: Fatal: master: service(lmtp): child 3839880 returned error 83 (Out of memory (service lmtp { vsz_limit=256 MB }, you may need to increase it) - set CORE_OUTOFMEM=1 environment to get core dump)
+# exim would just queue mail until it eventually succeeded.
+# Deciding what to increase it to, I found this
+# https://dovecot.org/list/dovecot/2011-December/080056.html
+# which suggests 3x the largest dovecot.index.cache file
+# and then I found that
+# md/l/testignore/dovecot.index.cache is 429M, my largest cache file,
+# but that folder only has 2k messages.
+# next biggest is md/l/qemu-devel/dovecot.index.cache 236M
+# which lead to me a search https://doc.dovecot.org/admin_manual/known_issues/large_cache/
+# which suggests 1.5x the maximum cache file size 1G, and
+# that I can safely rm the indix
+
+default_vsz_limit = 1500M
+
# simple password file based login
!include conf.d/auth-passwdfile.conf.ext