diff -Nur smeserver-horde-1.0.0.old/root/etc/e-smith/templates/usr/share/horde/ingo/config/backends.local.php/100Ingo smeserver-horde-1.0.0/root/etc/e-smith/templates/usr/share/horde/ingo/config/backends.local.php/100Ingo
--- smeserver-horde-1.0.0.old/root/etc/e-smith/templates/usr/share/horde/ingo/config/backends.local.php/100Ingo	2016-06-05 23:28:59.000000000 -0400
+++ smeserver-horde-1.0.0/root/etc/e-smith/templates/usr/share/horde/ingo/config/backends.local.php/100Ingo	2020-03-27 14:42:24.129000000 -0400
@@ -15,7 +15,7 @@
             $OUT .= "\$backends['sieve']['transport'][Ingo::RULE_ALL]['params']['port'] = '$SievePort';\n";
             $OUT .= "\$backends['sieve']['script'][Ingo::RULE_ALL]['params']['utf8'] = true;\n";
    } else {
-            $OUT = "\$backends['imap']['preferred'] = 'mail.$DomainName';";
+            $OUT = "\$backends['imap']['preferred'] = '$DomainName';";
           }
 }