diff --git a/app/controllers/valuation/budget_investments_controller.rb b/app/controllers/valuation/budget_investments_controller.rb
index 03facadb3..666fac74a 100644
--- a/app/controllers/valuation/budget_investments_controller.rb
+++ b/app/controllers/valuation/budget_investments_controller.rb
@@ -21,6 +21,11 @@ class Valuation::BudgetInvestmentsController < Valuation::BaseController
 
   def valuate
     if valid_price_params? && @investment.update(valuation_params)
+
+      if @investment.unfeasible_email_pending?
+        @investment.send_unfeasible_email
+      end
+
       redirect_to valuation_budget_budget_investment_path(@budget, @investment), notice: t('valuation.budget_investments.notice.valuate')
     else
       render action: :edit
diff --git a/app/mailers/mailer.rb b/app/mailers/mailer.rb
index c5c4ae603..188de029b 100644
--- a/app/mailers/mailer.rb
+++ b/app/mailers/mailer.rb
@@ -82,6 +82,15 @@ class Mailer < ApplicationMailer
     end
   end
 
+  def budget_investment_unfeasible(investment)
+    @investment = investment
+    @author = investment.author
+
+    with_user(@author) do
+      mail(to: @author.email, subject: t('mailers.budget_investment_unfeasible.subject', code: @investment.code))
+    end
+  end
+
   private
 
   def with_user(user, &block)
diff --git a/app/models/budget/investment.rb b/app/models/budget/investment.rb
index dd98e472e..4c8816abc 100644
--- a/app/models/budget/investment.rb
+++ b/app/models/budget/investment.rb
@@ -136,12 +136,21 @@ class Budget
       unfeasible? && valuation_finished?
     end
 
+    def unfeasible_email_pending?
+      unfeasible_email_sent_at.blank? && unfeasible? && valuation_finished?
+    end
+
     def total_votes
       cached_votes_up + physical_votes
     end
 
     def code
-      "B#{budget.id}I#{id}"
+      "#{created_at.strftime('%Y')}-#{id}" + (administrator.present? ? "-A#{administrator.id}" : "")
+    end
+
+    def send_unfeasible_email
+      Mailer.budget_investment_unfeasible(self).deliver_later
+      update(unfeasible_email_sent_at: Time.current)
     end
 
     def reason_for_not_being_selectable_by(user)
diff --git a/app/views/mailer/budget_investment_unfeasible.html.erb b/app/views/mailer/budget_investment_unfeasible.html.erb
new file mode 100644
index 000000000..3bed46cec
--- /dev/null
+++ b/app/views/mailer/budget_investment_unfeasible.html.erb
@@ -0,0 +1,35 @@
+<td style="padding-bottom: 20px; padding-left: 10px;">
+
+  <p style="font-family: 'Open Sans','Helvetica Neue',arial,sans-serif;font-size: 14px;font-weight: normal;line-height: 24px;">
+    <%= t("mailers.budget_investment_unfeasible.hi") %>
+  </p>
+
+  <p style="font-family: 'Open Sans','Helvetica Neue',arial,sans-serif;font-size: 14px;font-weight: normal;line-height: 24px;">
+    <%= t("mailers.budget_investment_unfeasible.unfeasible_html",
+        title: @investment.title) %>
+  </p>
+
+  <p style="font-family: 'Open Sans','Helvetica Neue',arial,sans-serif;font-size: 14px;font-weight: normal;line-height: 24px; padding-left: 12px; border-left: 2px solid #ccc;">
+    <%= @investment.unfeasibility_explanation %>
+  </p>
+
+  <p style="font-family: 'Open Sans','Helvetica Neue',arial,sans-serif;font-size: 14px;font-weight: normal;line-height: 24px;">
+  <%= t("mailers.budget_investment_unfeasible.new_html",
+      url: link_to(t("mailers.budget_investment_unfeasible.new_href"),
+      new_budget_investment_url(@investment.budget), style: "color: #2895F1; text-decoration: underline;")) %>
+  </p>
+
+  <p style="font-family: 'Open Sans','Helvetica Neue',arial,sans-serif;font-size: 14px;font-weight: normal;line-height: 24px;">
+    <%= t("mailers.budget_investment_unfeasible.reconsider_html", code: @investment.code) %>
+  </p>
+
+  <p style="font-family: 'Open Sans','Helvetica Neue',arial,sans-serif;font-size: 14px;font-weight: normal;line-height: 24px;">
+    <%= t("mailers.budget_investment_unfeasible.sorry") %>
+  </p>
+
+  <p style="font-family: 'Open Sans','Helvetica Neue',arial,sans-serif;font-size: 14px;font-weight: normal;line-height: 24px;">
+    <%= t("mailers.budget_investment_unfeasible.sincerely") %><br>
+  <span style="font-family: 'Open Sans','Helvetica Neue',arial,sans-serif;font-size: 12px;font-weight: normal;line-height: 24px; color: #ccc;">
+    <%= t("mailers.budget_investment_unfeasible.signatory") %></span>
+  </p>
+</td>
\ No newline at end of file
diff --git a/db/migrate/20170114154421_add_unfeasible_email_sent_at_to_budget_investments.rb b/db/migrate/20170114154421_add_unfeasible_email_sent_at_to_budget_investments.rb
new file mode 100644
index 000000000..dbd1a203b
--- /dev/null
+++ b/db/migrate/20170114154421_add_unfeasible_email_sent_at_to_budget_investments.rb
@@ -0,0 +1,5 @@
+class AddUnfeasibleEmailSentAtToBudgetInvestments < ActiveRecord::Migration
+  def change
+    add_column :budget_investments, :unfeasible_email_sent_at, :datetime
+  end
+end
diff --git a/db/schema.rb b/db/schema.rb
index 6a9498399..fb563c8db 100644
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -11,7 +11,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 20170106130838) do
+ActiveRecord::Schema.define(version: 20170114154421) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
@@ -143,6 +143,7 @@ ActiveRecord::Schema.define(version: 20170106130838) do
     t.boolean  "selected",                              default: false
     t.string   "location"
     t.string   "organization_name"
+    t.datetime "unfeasible_email_sent_at"
   end
 
   add_index "budget_investments", ["administrator_id"], name: "index_budget_investments_on_administrator_id", using: :btree