scroll down individual messages

muttrc

@@ -39,8 +39,10 @@ bind index D delete-message
 bind index U undelete-message
 bind index F search
 bind index,pager R group-reply
-bind index,pager \031 previous-undeleted # Mouse wheel
-bind index,pager \005 next-undeleted # Mouse wheel
+bind index \031 previous-undeleted # Mouse wheel
+bind index \005 next-undeleted # Mouse wheel
+bind pager \031 previous-line # Mouse wheel
+bind pager \005 next-line # Mouse wheel
 macro index,pager S <sync-mailbox>
 macro index,pager \Cu |urlscan\n
 macro index,pager ,, |urlscan\n