diff -urN 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	2021-09-18 05:47:47.921933534 -0400
+++ smeserver-horde-1.0.0/root/etc/e-smith/templates/usr/share/horde/ingo/config/backends.local.php/100Ingo	2021-09-18 05:51:55.000000000 -0400
@@ -13,6 +13,7 @@
             $OUT .= ";\n";
             $OUT .= "\$backends['sieve']['transport'][Ingo::RULE_ALL]['params']['logintype'] = 'PLAIN';\n";
             $OUT .= "\$backends['sieve']['transport'][Ingo::RULE_ALL]['params']['port'] = '$SievePort';\n";
+            $OUT .= "\$backends['sieve']['transport'][Ingo::RULE_ALL]['params']['usetls'] = false;\n";
             $OUT .= "\$backends['sieve']['script'][Ingo::RULE_ALL]['params']['utf8'] = true;\n";
    } else {
             $OUT = "\$backends['imap']['preferred'] = '$DomainName';";