docs: use a smaller logo on the readme

README.md

@@ -1,8 +1,6 @@
-# Postal
+<img src="https://share.adam.ac/21/logo-g3hWemROTemCYbWlmL.svg" width="400" />
 
-<img src="https://share.adam.ac/21/logo-g3hWemROTemCYbWlmL.svg" />
+**Postal** is a complete and fully featured mail server for use by websites & web servers. Think Sendgrid, Mailgun or Postmark but open source and ready for you to run on your own servers. Postal is developed by [Krystal](https://k.io) to serve its own mail processing requirements and we have since decided that it should be released as an open source project for the community.
-
-Postal is a complete and fully featured mail server for use by websites & web servers. Think Sendgrid, Mailgun or Postmark but open source and ready for you to run on your own servers. Postal is developed by [Krystal](https://k.io) to serve its own mail processing requirements and we have since decided that it should be released as an open source project for the community.
 
 ![Screenshot](https://share.adam.ac/17/k4lA5OuPlU2.png)
 

app/models/webhook_event.rb

@@ -22,9 +22,7 @@ class WebhookEvent < ApplicationRecord
     'MessageBounced',
     'MessageLinkClicked',
     'MessageLoaded',
-    'DomainDNSError',
+    'DomainDNSError'
-    'SendLimitApproaching',
-    'SendLimitExceeded'
   ]
 
   belongs_to :webhook