Ask a question about their business, industry or the workplace.

Provide information on your continued professional development.

Ask them for feedback on your CV and how far you came in their recruitment process.

Provide further information about yourself and invite questions.

You haven’t been offered an interview, but give them a heads up on the days and times you are available should you be offered one.

Show how keen you are about working for the company.

Effectively a copy and paste of your CV’s personal profile with a few tweaks.

Reiterate your skills.

Make an enquiry about the recruitment process.

You want to send them a message and include your CV for good measure.

Let them know you had visited their premises (shop, restaurant, pub etc) and what you liked about it.