[FIX] discuss, cmdline: update for static outgoing mail addresses

This changed for Odoo 15.0 in odoo/odoo#61853 and the docs didn't
reflect that change.

MT-52 @moduon

closes odoo/documentation#1469

X-original-commit: 084fb777f9
Signed-off-by: Antoine Vandevenne (anv) <anv@odoo.com>

content/developer/misc/other/cmdline.rst

@@ -259,6 +259,12 @@ Emails
 
     Email address used as <FROM> when Odoo needs to send mails
 
+.. option:: --from-filter <address or domain>
+
+    Email address or domain that the mail server is configured for. If the 
+    email of the sender does not match this value, it might be encapsulated 
+    into ``mail.default.from``.
+
 .. option:: --smtp <server>
 
     Address of the SMTP server to connect to in order to send mails
@@ -277,6 +283,14 @@ Emails
 
     Password to connect to the SMTP server
 
+.. option:: --smtp-ssl-certificate-filename <path/to/cert.pem>
+
+    SSL certificate used for SMTP authentication
+
+.. option:: --smtp-ssl-private-key-filename <path/to/key.pem>
+
+    SSL private key used for SMTP authentication
+
 .. _reference/cmdline/server/internationalisation:
 
 Internationalisation