metamaps--metamaps/app/views/map_mailer/access_request.text.erb

<% map = @map || map %>
<% request = @request || request %>
<%= request.user.name %> has requested to collaboratively edit the following map:

<%= map.name %> [<%= map_url(map) %>]

Allow [<%= approve_access_map_url(id: map.id, request_id: request.id) %>]
Decline [<%= deny_access_map_url(id: map.id, request_id: request.id) %>]