[subject:{nickname} invites you - {site}]
Hello.
User {nickname} invites
you to register on the site {site}.
<blockquote>Invitation code:
{code}</blockquote>
A link to the registration page:
<a
href="{page_url}">{page_url}</a>
If you are not
interested - just ignore this letter.
--
Best regards, {site}
<small>This letter is sent automatically, please do not
reply</small>