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-rw-r--r--modules/user.module4
1 files changed, 2 insertions, 2 deletions
diff --git a/modules/user.module b/modules/user.module
index f4ebe3fbd..8dd81ae35 100644
--- a/modules/user.module
+++ b/modules/user.module
@@ -184,10 +184,10 @@ function user_validate_mail($mail) {
/*
** Verify the syntax of the given e-mail address. Empty e-mail addresses
- ** allowed.
+ ** allowed. See RFC 2822 for details.
*/
- $user = '[a-zA-Z0-9_\-\.\+]+';
+ $user = '[a-zA-Z0-9_\-\.\+\^!#\$%&*+\/\=\?\`\|\{\}~\']+';
$domain = '(?:[a-zA-Z0-9]|[a-zA-Z0-9][a-zA-Z0-9\-]*[a-zA-Z0-9]\.?)+';
$ipv4 = '[0-9]{1,3}(\.[0-9]{1,3}){3}';
$ipv6 = '[0-9a-fA-F]{1,4}(\:[0-9a-fA-F]{1,4}){7}';