java - html tags are not rendering in email message -

i'm getting email message html tags database , using create email content:

from database:

service provided:<br/><br/> blah blah blah 

these text attributes stored in object , transformed html message populating values in envelope. part holds above attribute below:

hello <xsl:value-of select="mail-root/contact/name/first"/><br/><br/> account number: <xsl:value-of select="mail-root/account/account_number"/><br/><br/>  <xsl:value-of select="mail-root/attributes/email_message"/><br/><br/> 

the values being populated , html tags in envelope getting rendered correctly. html tags inside email_message, doesn't render, shown is:

hello test  account number : xxxxxxx  service provided:<br/><br/> blah blah blah 

how can make render html tags? note can modify content in database if solution needs.

thanks.

did try adding:

<xsl:output method="html"/> 

to stylesheet?