From 5edca4f4d3fd9894855bf5d271a2ee00cefebdab Mon Sep 17 00:00:00 2001
From: David Flatz
Date: Mon, 8 Feb 2016 19:09:52 +0100
Subject: encode header with base64 when quoted-printable fails because of php
 bug #53891

---
 it_mail.class | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

(limited to 'it_mail.class')

diff --git a/it_mail.class b/it_mail.class
index aa242c5..6c4398f 100644
--- a/it_mail.class
+++ b/it_mail.class
@@ -305,7 +305,12 @@ function send($p = array())
 function header_escape($string)
 {
 	return preg_match('/[\x00-\x1f\x7f-\xff]/', $string)
-		? ltrim(iconv_mime_encode('', $string, array('scheme' => 'Q', 'input-charset' => $this->charset, 'output-charset' => $this->charset)), ' :')
+		? ltrim(
+			($encoded = @iconv_mime_encode('', $string, array('scheme' => 'Q', 'input-charset' => $this->charset, 'output-charset' => $this->charset))) !== false
+			? $encoded
+			: iconv_mime_encode('', $string, array('scheme' => 'B', 'input-charset' => $this->charset, 'output-charset' => $this->charset)),
+			' :'
+		)
 		: $string;
 }
 
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