1 files changed, 31 insertions, 0 deletions

diff --git a/hosts/surtr/email/default.nix b/hosts/surtr/email/default.nix
index a3e06ca6..ee2f44f9 100644
--- a/hosts/surtr/email/default.nix
+++ b/hosts/surtr/email/default.nix
@@ -236,6 +236,37 @@ in {
         bounce_queue_lifetime = "20m";
         delay_warning_time = "10m";
 
+        failure_template_file = pkgs.writeText "failure.cf" ''
+          Charset: us-ascii
+          From: Mail Delivery System <MAILER-DAEMON>
+          Subject: Undelivered Mail Returned to Sender
+          Postmaster-Subject: Postmaster Copy: Undelivered Mail
+
+          This is the mail system at host $myhostname.
+
+          I'm sorry to have to inform you that your message could not
+          be delivered to one or more recipients. It's attached below.
+
+                             The mail system
+        '';
+        delay_template_file = pkgs.writeText "delay.cf" ''
+          Charset: us-ascii
+          From: Mail Delivery System <MAILER-DAEMON>
+          Subject: Delayed Mail (still being retried)
+          Postmaster-Subject: Postmaster Warning: Delayed Mail
+
+          This is the mail system at host $myhostname.
+
+          ####################################################################
+          # THIS IS A WARNING ONLY.  YOU DO NOT NEED TO RESEND YOUR MESSAGE. #
+          ####################################################################
+
+          Your message could not be delivered for more than $delay_warning_time_minutes minute(s).
+          It will be retried until it is $maximal_queue_lifetime_minutes minute(s) old.
+
+                             The mail system
+        '';
+
         smtpd_discard_ehlo_keyword_address_maps = "cidr:${pkgs.writeText "esmtp_access" ''
           # Allow DSN requests from local subnet only
           192.168.0.0/16      silent-discard