flasky/app/templates/auth/email/change_email.html

<p>Dear {{ user.username }},</p>
<p>To confirm your new email address <a href="{{ url_for('auth.change_email', token=token, _external=True) }}">click here</a>.</p>
<p>Alternatively, you can paste the following link in your browser's address bar:</p>
<p>{{ url_for('auth.change_email', token=token, _external=True) }}</p>
<p>Sincerely,</p>
<p>The Flasky Team</p>
<p><small>Note: replies to this email address are not monitored.</small></p>