Certain special characters such as £, á,é,í,ó and ú cause the remainder of the message to be cut off as they cannot be parsed for some reason. This of course causes issues where customers may be querying a price, or for foreign customers posting a question via our forms and saying something with the word "arrivé" for example, as seen earlier today. I will be looking into this in further detail myself however for your own benefit I notice in the process.php headers (found through developer tools in google chrome -> network) the "Message" field in form data is "(unable to decode value)". This applies to all browsers however as in follow-up discussions with customers who've hit this snag I've found that they can be using any browser (firefox, chrome, i.e and safari as the main ones).

Steps to reproduce:

post for example the following:

aaaá
oooó
eeeé

and you won't get past "aaa" from what I've seen.