This template can be seen in the upper right corner.

{{email user}}

This template is designed to indicate that a user can be contacted through Wikipedia's email system.

Place {{email user}} anywhere on your user page.

This icon is based on {{topicon}}

{{email user
| icon_nr      = the icon number determines the offset of the topicon (the rightmost one is zero)
| extra_offset = an additional offset that you can use to force or adapt (in case you have non-20px wide elements in your topicon row)
}}