diff --git a/emailadmin/inc/class.emailadmin_imapbase.inc.php b/emailadmin/inc/class.emailadmin_imapbase.inc.php
index 8a2f495db8..91747cc416 100644
--- a/emailadmin/inc/class.emailadmin_imapbase.inc.php
+++ b/emailadmin/inc/class.emailadmin_imapbase.inc.php
@@ -6038,9 +6038,9 @@ class emailadmin_imapbase
 						$mailObject->addAddress(self::$idna2->encode($email),$mailObject->EncodeHeader($nfn));
 						$mailObject->addHeader('Subject', $bo_merge->merge_string($Subject, $val, $e, 'text/plain', array(), self::$displayCharset));
 						//error_log(__METHOD__.' ('.__LINE__.') '.' ContentType:'.$mailObject->BodyContentType);
-						if (!empty($Body)) $text_body->setContents($bo_merge->merge_string($Body, $val, $e, 'text/plain', array(), self::$displayCharset));
+						if (!empty($Body)) $text_body->setContents($bo_merge->merge_string($Body, $val, $e, 'text/plain', array(), self::$displayCharset),array('encoding'=>Horde_Mime_Part::DEFAULT_ENCODING));
 						//error_log(__METHOD__.' ('.__LINE__.') '.' Result:'.$mailObject->Body.' error:'.array2string($e));
-						if (!empty($AltBody)) $html_body->setContents($bo_merge->merge_string($AltBody, $val, $e, 'text/html', array(), self::$displayCharset));
+						if (!empty($AltBody)) $html_body->setContents($bo_merge->merge_string($AltBody, $val, $e, 'text/html', array(), self::$displayCharset),array('encoding'=>Horde_Mime_Part::DEFAULT_ENCODING));
 
 						//error_log(__METHOD__.' ('.__LINE__.') '.array2string($mailObject));
 						// set a higher timeout for big messages
@@ -6076,9 +6076,9 @@ class emailadmin_imapbase
 						}
 						$mailObject->addHeader('Subject', $bo_merge->merge_string($Subject, $val, $e, 'text/plain', array(), self::$displayCharset));
 						//error_log(__METHOD__.' ('.__LINE__.') '.' ContentType:'.$mailObject->BodyContentType);
-						if (!empty($Body)) $text_body->setContents($bo_merge->merge_string($Body, $val, $e, 'text/plain', array(), self::$displayCharset));
+						if (!empty($Body)) $text_body->setContents($bo_merge->merge_string($Body, $val, $e, 'text/plain', array(), self::$displayCharset),array('encoding'=>Horde_Mime_Part::DEFAULT_ENCODING));
 						//error_log(__METHOD__.' ('.__LINE__.') '.' Result:'.$mailObject->Body.' error:'.array2string($e));
-						if (!empty($AltBody)) $html_body->setContents($bo_merge->merge_string($AltBody, $val, $e, 'text/html', array(), self::$displayCharset));
+						if (!empty($AltBody)) $html_body->setContents($bo_merge->merge_string($AltBody, $val, $e, 'text/html', array(), self::$displayCharset),array('encoding'=>Horde_Mime_Part::DEFAULT_ENCODING));
 						$_folder = $this->getDraftFolder();
 					}
 					if ($sendOK || $openAsDraft)