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authorAntoine Eiche <lewo@abesis.fr>2022-07-10 09:25:43 +0200
committerlewo <lewo@abesis.fr>2022-11-27 19:14:52 +0000
commit737eb4f3980560605d5c3b118b34ec4fb0b533d4 (patch)
treef889f03817ea29b616a5882b5f3390119d11a35d
parenta40e9c3abb4b12d384df1ff2ca9a537227635e1f (diff)
docs: explicitly mention a reverse DNS entry is required
Fixes https://gitlab.com/simple-nixos-mailserver/nixos-mailserver/-/issues/234
-rw-r--r--docs/setup-guide.rst9
1 files changed, 8 insertions, 1 deletions
diff --git a/docs/setup-guide.rst b/docs/setup-guide.rst
index 4a39676..8127734 100644
--- a/docs/setup-guide.rst
+++ b/docs/setup-guide.rst
@@ -96,7 +96,14 @@ Set rDNS (reverse DNS) entry for server
Wherever you have rented your server, you should be able to set reverse
DNS entries for the IP’s you own. Add an entry resolving ``1.2.3.4``
-to ``mail.example.com``
+to ``mail.example.com``.
+
+.. warning::
+
+ We don't recommend setting up a mail server if you are not able to
+ set a reverse DNS on your public IP because sent emails would be
+ mostly marked as spam. Note that many residential ISP providers
+ don't allow you to set a reverse DNS entry.
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