MailTo links are very useful to open the Email Client of your visitors with your email already pre-filled.
On Lnk.Bio you can add MailTo links very easily. Simply head over to your Lnks page and add a new link.
You can add anything as Title, and in the Lnk field add
mailto:youremai@email.com
For example
mailto:info@lnk.bio
See a full example in the screenshot below: