Sending EMAIL - Change Font and Size

I have a module that sends EMAIL from a Cache INT routine (listed below).

In order to make sure the columns align in the body of the message that the recipient receives I want to force the setting of the FONT and SIZE in the body.

Does anyone know what I need to insert in this code in order to control font and size?

Alternatively is there a way to send mail from within Cache that will keep column data aligned?

Thanks.

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s server=##class(%Net.SMTP).%New()

s server.smtpserver=server_name

s server.post=nn

s msg=##class(%Net.MailMessage)).%New()

s msg.from="from_email_address"

d msg.To.Insert("to_email_address"

d msg.TextData.WriteLine("column 1   column 2   column 3")

d msg.TextData.WriteLine("column1    column 2   column 3")

s status=server.Send(msg)