Reduced transactional email sends a bit.

server/routes/mail.coffee

@@ -542,7 +542,8 @@ handleLadderUpdate = (req, res) ->
   res.send('Great work, Captain Cron! I can take it from here.')
   res.end()
   # TODO: somehow fetch the histograms
-  emailDays = [1, 2, 4, 7, 14, 30]
+  #emailDays = [1, 2, 4, 7, 14, 30]
+  emailDays = [1, 3, 7]  # Reduced to keep smaller monthly recipient footprint
   now = new Date()
   for daysAgo in emailDays
     # Get every session that was submitted in a 5-minute window after the time.

server/users/User.coffee

@@ -209,13 +209,14 @@ UserSchema.methods.register = (done) ->
       @set 'name', uniqueName
       done()
   else done()
-  data =
-    email_id: sendwithus.templates.welcome_email
-    recipient:
-      address: @get 'email'
-  sendwithus.api.send data, (err, result) ->
-    log.error "sendwithus post-save error: #{err}, result: #{result}" if err
-  delighted.addDelightedUser @
+  if @isEmailSubscriptionEnabled 'generalNews'
+    data =
+      email_id: sendwithus.templates.welcome_email
+      recipient:
+        address: @get 'email'
+    sendwithus.api.send data, (err, result) ->
+      log.error "sendwithus post-save error: #{err}, result: #{result}" if err
+    delighted.addDelightedUser @
   @saveActiveUser 'register'
 
 UserSchema.methods.isPremium = ->