Are you using HTML or Plain Text?

View > Message Body as > Original HTML

Thanks - I see that my tablet is sending the e-Mails in plain style not HTML. I have no idea how to fix that.

To make sure you are sending in both Plain text and HTML, so that anyone can open your emails in whatever format they choose. These are the settings.

'Tools' > 'Options' > 'Composition' > 'General' tab see image below.

Click on 'Send Options' button Text format: select 'Send the message in both plain text and HTML' click on OK to save send options. click on OK to save changes to Options.

If you are currently only able to Write a new message in Plain Text, but want to write using HTML formatting.

'Tools ' > 'Account settings' > 'Composition & Addressing' for the mail account. select : 'Compose messages in HTML format'

see image below.

make any other selections you require. Click on OK to save changes.