Create your own free email cards online using any of the hundreds of images we have collated here from around the web and licensed under a Creative Commons, so you are free to use them to create email greeting cards.
Email greeting cards were one of the orginal killer applications on the web emerging pretty much as soon as email took off in homes and offices around the world. They were also one of the orginal vectors for the spread of viruses and trojans which definitely made people a little wary (as they should be) of clicking on links in email.
Long story short, as long as you are careful only to use those reputable email card services (like Delivr) then you are totally safe. Oh, and don't go clicking on any links in emails that you can't verify are from genuine sources.