How to Change The E mail format

[odienk]

Hi. I'm new for using this wonderfull plugin, The one thing that I need is how to change the email format that the registrant will recieve. after they conduct succesfull registration.

example :
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Thank you for registering
username : XXXXX
Password : xxxxx

We also encourage you to visit this link XXXXXXX
and bla...bla......

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Any one want to help me solve this ?
Thanks in adavance