Matilda
It is not necessary to register the marriage in Ireland as we acknowledge DR marriages. I got this information from the Citizens Information site (
www.citizensinformation.ie) text as follows:
If you or your partner are an Irish citizen(s) and are thinking of getting married outside of Ireland, you should realise that the legal validity of your marriage is governed, in part, by the laws of the country in which you marry. In most, if not all cases, the legal formalities abroad are very different to those in Ireland. For example, a church marriage abroad is usually a purely religious ceremony with no legal effect. Because it is not recognised in law in the country in which it takes place, it cannot be regarded as a legal marriage in Ireland. This is the case even though a marriage in the same church or denomination in Ireland can be legally binding.
It is very important, therefore, that you make sure to meet all the legal requirements of the country you are marrying in. You should contact the relevant embassy or the religious authorities in that country to find out what is required. View a list of Irish embassies and consulates abroad here.
Thanks for all your input on this. I really need to find out of the document we have is legal as I have only received a faxed copy.