Postmark sends MailboxHash as all lowercase

Author: joemasilotti

app/jobs/inbound_email_job.rb

@@ -28,7 +28,7 @@ def send_message(message, email:)
   end
 
   def conversation
-    @conversation ||= user.conversations.find_by!(inbound_email_token: conversation_token)
+    @conversation ||= user.conversations.find_by_inbound_email_token!(conversation_token)
   end
 
   def user

app/models/conversation.rb

@@ -13,6 +13,10 @@ class Conversation < ApplicationRecord
   scope :blocked, -> { where.not(developer_blocked_at: nil).or(Conversation.where.not(business_blocked_at: nil)) }
   scope :visible, -> { where(developer_blocked_at: nil, business_blocked_at: nil) }
 
+  def self.find_by_inbound_email_token!(token)
+    where("lower(inbound_email_token) = ?", token).first!
+  end
+
   def other_recipient(user)
     developer == user.developer ? business : developer
   end

test/jobs/inbound_email_job_test.rb

@@ -74,7 +74,7 @@ def payload(id: "7ca91d0d-cf10", from_email: users(:prospect_developer).email)
         "Email" => from_email
       },
       "MessageID" => id,
-      "MailboxHash" => conversations(:one).inbound_email_token,
+      "MailboxHash" => conversations(:one).inbound_email_token.downcase,
       "StrippedTextReply" => "A reply via email."
     }
   end