mod/notification-email: $NotificationFunctions->"email": support hook for signature

You can compose your own signature by creating a function:

:global NotificationEMailSignature do={
  :global EitherOr;

  :local RouterBoard [ /system/routerboard/get ];
  :return ( \
    [ $EitherOr ($RouterBoard->"board-name") ($RouterBoard->"model") ] . " s/n " . $RouterBoard->"serial-number" . " | " . \
    "RouterOS " . [ /system/package/update/get installed-version ] . " | " . \
    "IP " . [ /ip/cloud/get public-address ]);
}

1 files changed, 2 insertions, 1 deletions

diff --git a/mod/notification-email.rsc b/mod/notification-email.rsc
index e10353c..5d5aed1 100644
--- a/mod/notification-email.rsc
+++ b/mod/notification-email.rsc
@@ -131,6 +131,7 @@
 
   :global EitherOr;
   :global IfThenElse;
+  :global NotificationEMailSignature;
   :global NotificationEMailSubject;
 
   :local To [ $EitherOr ($EmailGeneralToOverride->($Notification->"origin")) $EmailGeneralTo ];
@@ -144,7 +145,7 @@
   :if ([ :typeof $EmailQueue ] = "nothing") do={
       :set EmailQueue ({});
   }
-  :local Signature [ /system/note/get note ];
+  :local Signature [ $EitherOr [ $NotificationEMailSignature ] [ /system/note/get note ] ];
   :set ($EmailQueue->[ :len $EmailQueue ]) {
     to=$To; cc=$Cc;
     subject=[ $NotificationEMailSubject ($Notification->"subject") ];