Send email via outlook using macro with specific format

Hi there,

I have already macro with sends emails via outlook based on a text which is in column, H. I would like to send this text with an specific format, some parts of the body in bold but I cannot find the way.

Dear,
Congratulations on completing 18 years.
We would like to thank you ... 07/09/1998.

.....

Thank you for your commitment!.

Can you please help?

thanks
Antonia