Email Validation with Regular Expression

Here is the xsd code:

<?xml version="1.0" encoding="UTF-8"?>
<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema"
xmlns:e="http://rep.oio.dk/email"
targetNamespace="http://rep.oio.dk/email"
elementFormDefault="qualified" version="1.0">
       <xsd:element name="email" type="e:emailType"/>
       <xsd:simpleType name="emailType">
               <xsd:restriction base="xsd:string">
                       <xsd:pattern
value="((\S*\s*)*&lt;(([a-zA-Z0-9!#$%&amp;'\*\+/=\?\^`\{\}\|~\._-])|(&quot;.+&quot;)|(\\.))+@([a-zA-Z0-9-])+(([a-zA-Z0-9-])*\.([a-zA-Z0-9-])+)+&gt;)|((([a-zA-Z0-9!#$%&amp;'\*\+/=\?\^`\{\}\|~\._-])|(&quot;.+&quot;)|(\\.))+@([a-zA-Z0-9-])+(([a-zA-Z0-9-])*\.([a-zA-Z0-9-])+)+)"/>
               </xsd:restriction>
       </xsd:simpleType>
</xsd:schema>

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This validates e-mail address like:

hello world    <Joe.\\Blow@e...>

"Test Person" <$A12345@http://example.com/>

Abc\@def@http://example.com/

"Fred Bloggs"@http://example.com/

!def!xyz%abc@http://example.com/

Random <customer/department=shipping@e...>

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Many thanks for any input,

Ben Azan