From 5f58b942f4fb0aa56c6ae2c32315a91918ef9d1a Mon Sep 17 00:00:00 2001 From: Alberto Bertogli Date: Mon, 15 Mar 2021 18:32:22 +0000 Subject: [PATCH] docs: Update how-to with new links and fix mda-lmtp path This patch adds a new link to the RBL checking suggestion, since the existing one doesn't work with IPv6, and it's important to get good coverage. While at it, it also fixes the path to mda-lmtp, which was wrong before. --- docs/howto.md | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/docs/howto.md b/docs/howto.md index 0457aa6..f631b6b 100644 --- a/docs/howto.md +++ b/docs/howto.md @@ -52,10 +52,10 @@ selecting a provider: - Make sure they allow traffic on TCP port 25 (SMTP). While almost all VPS and dedicated server providers are fine, some "cloud" providers (like Google Cloud) block port 25, which is used for sending and receiving mails. - - Once you get a server, make sure the IP address is not listed in any + - Once you get a server, make sure the IP addresses are not listed in any [blackhole lists]. - There are many services to check them, for example the one from [the - Anti-Abuse project]. + There are many services to check them, for example [the + Anti-Abuse project] or [multirbl.valli.org]. Remember to update your server regularly, setting up [unattended upgrades] is highly recommended. @@ -63,6 +63,7 @@ highly recommended. [the Anti-Abuse project]: http://www.anti-abuse.org/multi-rbl-check/ [blackhole lists]: https://en.wikipedia.org/wiki/DNSBL [unattended upgrades]: https://wiki.debian.org/UnattendedUpgrades +[multirbl.valli.org]: http://multirbl.valli.org/ ## DNS @@ -175,7 +176,7 @@ sudo mkdir -p /etc/chasquid/domains/example.com cat <