These are basic XSLT questions, and have nothing to do with Cocoon - use XSLT mail lists in future.
Here is an answer: you must write this in one line:
<xsl:attribute name="href">mailto:<xsl:value-of select="member/e_mail"/>@ccra-adrc.gc.ca</xsl:attribute>
OR use <xsl:text>:
<xsl:attribute name="href">
  <xsl:text>mailto:<xsl:value-of select="member/e_mail"/>@ccra-adrc.gc.ca</xsl:text>
-----Original Message-----
From: Hewko, Doug [mailto:Doug.Hewko@ccra-adrc.gc.ca]
Sent: Thursday, August 02, 2001 9:04 AM
To: 'cocoon-users@xml.apache.org'
Subject: Cocoon2 changing links on me....

Why do I get http://localhost/cocoon/%0D%0A%09%09mailto:doug.hewko@ccra-adrc.gc.ca instead of mailto:doug.hewko@ccra-adrc.gc.ca when I am trying a href in Cocoon2? How could I get rid of the http://localhost/cocoon/ that is being prefixed?
Here is what my stylesheet looks like:
<xsl:template match="teammembers">
   <xsl:if test="member[@contact='yes']">
   If you have any questions or inquiries, d please do not hesitate to contact
  <xsl:value-of select="member/name"/>
  <xsl:value-of select="member/phone/number"/>
 , or e-mail
  <xsl:attribute name="href">
  mailto:<xsl:value-of select="member/e_mail"/>@ccra-adrc.gc.ca</xsl:attribute>
  <img src="_images/email.gif" style="cursor:hand" border="0"/>