[exim/exim] [patch] doc: primary_hostname description should also refer to the apearence of a @ in domain lists (Issue #3214)

My understanding is the description for the primary_hostname option attempts to list its usage ( https://code.exim.org/exim/exim/src/commit/320482241e766498f8afd1c0b19f209820cd1831/doc/doc-docbook/spec.xfpt#L17521-L17525 ). If that is the case, the replacement of the single @ character in a domain list is missing from that list.

diff --git a/doc/doc-docbook/spec.xfpt b/doc/doc-docbook/spec.xfpt
index 1182fdba5..d2ef5403d 100644
--- a/doc/doc-docbook/spec.xfpt
+++ b/doc/doc-docbook/spec.xfpt
@@ -17520,7 +17520,9 @@ volume of mail. Use with care!
.vindex "&$primary_hostname$&"
This specifies the name of the current host. It is used in the default EHLO or
HELO command for outgoing SMTP messages (changeable via the &%helo_data%&
-option in the &(smtp)& transport), and as the default for &%qualify_domain%&.
+option in the &(smtp)& transport), as the default for &%qualify_domain%&, as
+well as the value behind the single @ character that can be included in a
+domain list.
The value is also used by default in some SMTP response messages from an Exim
server. This can be changed dynamically by setting &%smtp_active_hostname%&.

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View it on Exim Forgejo ( https://code.exim.org/exim/exim/issues/3214 ) or reply to this email directly.