Text links should be coloured and underlined to make them easily identifiable.

A good link colour is ‘blue‘ as everyone will know that this is a link. It is good practice to avoid the colours ‘Red’ and ‘Green’ – as these can be blocked by spam filters.

Also, think carefully about the wording of your links. Example “click to visit our website” can be changed to “visit our website“. This is a much clearer call to action that can easily be understood.

More useful email design tips are available in the Essential Guide to HTML Email Design