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-rw-r--r--program/steps/mail/sendmail.inc2
1 files changed, 1 insertions, 1 deletions
diff --git a/program/steps/mail/sendmail.inc b/program/steps/mail/sendmail.inc
index aee498221..f81c1529d 100644
--- a/program/steps/mail/sendmail.inc
+++ b/program/steps/mail/sendmail.inc
@@ -144,7 +144,7 @@ function rcmail_email_input_format($mailto, $count=false, $check=true)
global $EMAIL_FORMAT_ERROR, $RECIPIENT_COUNT;
// simplified email regexp, supporting quoted local part
- $email_regexp = '(\S+|("\s*(?:[^"\f\n\r\t\v\b\s]+\s*)+"))@\S+';
+ $email_regexp = '(\S+|("[^"]+"))@\S+';
$regexp = array('/[,;]\s*[\r\n]+/', '/[\r\n]+/', '/[,;]\s*$/m', '/;/', '/(\S{1})(<'.$email_regexp.'>)/U');
$replace = array(', ', ', ', '', ',', '\\1 \\2');