Subject: [PATCH] Long email addresses in system messages may be folded.
patch: cd /usr/local/sympa 
       cp -a sympa/bin/Sympa/Tools/Text.pm sympa/bin/Sympa/Tools/Text.pm.ORIG
       patch -p1 < /usr/local/src/sympa/Message_ID_may_be_folded.patch

--- sympa/bin/Sympa/Tools/Text.pm.DIST	2019-01-23 02:56:04.735347819 +0100
+++ sympa/bin/Sympa/Tools/Text.pm	2019-06-25 14:55:27.037611383 +0200
@@ -128,7 +128,8 @@ sub wrap_text {
         Language      => Sympa::Language->instance->get_lang,
         OutputCharset => (Encode::is_utf8($text) ? '_UNICODE_' : 'utf8'),
         Prep          => 'NONBREAKURI',
-        prep          => [$email_re, sub { shift; @_ }],
+        # commented by ckubu: 2019-06-25
+        # prep          => [$email_re, sub { shift; @_ }],
         ColumnsMax    => $cols
     )->fold($init, $subs, $text);