Hi Lucy, Welcome to Talkgraphics

I use MailChimp to create html newsletters on a regular basis and all my graphics are created in Xara. TBH using a service like mailchimp is better and safer than trying to do it yourself via Outlook or any other e-mail client. There are anti spam laws in pretty much every country around the world and there can be very large penalties if you run a foul of those laws. MailChimp and other services can make sure that your campaigns don't get caught in spam filters or get you in trouble. And they also provide automated lists and sign ups.

I have a Mail chimp sign up form embedded in my Xara created site and I also used Xara to create a custom tab for my facebook page with the sign up form there as well. And from the Website to the mailchimp newsletter to the facebook page all colours and images are consistent.