From 48ddc7416f1934b6569ada559c3473de6cf6e4b8 Mon Sep 17 00:00:00 2001
From: Guilhem Moulin <guilhem@fripost.org>
Date: Thu, 3 Mar 2016 22:28:46 +0100
Subject: Relax parsing of continuation requests for for empty resp-text.

microsoft's IMAP server violates RFC 3501 by skipping the trailing space
for empty resp-text.
---
 lib/Net/IMAP/InterIMAP.pm | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/lib/Net/IMAP/InterIMAP.pm b/lib/Net/IMAP/InterIMAP.pm
index 0405794..745e64f 100644
--- a/lib/Net/IMAP/InterIMAP.pm
+++ b/lib/Net/IMAP/InterIMAP.pm
@@ -2249,7 +2249,8 @@ sub _resp($$;$$$) {
             }
         }
     }
-    elsif (s/\A\+ //) {
+    elsif (s/\A\+// and ($_ eq '' or s/\A //)) {
+        # microsoft's IMAP server violates RFC 3501 by skipping the trailing ' ' for empty resp-text
         if (defined $callback and $cmd eq 'AUTHENTICATE') {
             my $x = $callback->($_);
             $self->_cmd_extend(\$x);
-- 
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