primary:
  host: "<%= @server %>"
  user_name: "<%= @username %>"
  password: "<%= @password %>"
  authentication: "PLAIN"
  mailbox: "INBOX"
  mailbox_processor: "InboundMailProcessor"

primary:
  host: "<%= @server %>"
  user_name: "<%= @username %>"
  password: "<%= @password %>"
  authentication: "PLAIN"
  mailbox: "INBOX"
  mailbox_processor: "InboundMailProcessor"
  days_to_retain: 10

Add mailboxes config days_to_retain parameter.
Add mailboxes config days_to_retain parameter.
