Digital Network may help you in registering your domain and web mail. i
Some suggestion to help you choosing your domain name:
It is better to use a name that has any relation with the acitvity and that it is easy to remember. The shorter the easier to find.
Some domain extensions refer to the nation of the server: .it stands for Italy, .fr for France, .uk for United Kingdom. But it is not always the same because some companies register their names for other nationalities.
Commercial web sites are characterised by the suffix .com, but this is not a rule. Some others may be registered also as .net (that stands for network) or .org that stants for without profit. The suffix may suggest the activity but it is not a legal statement of the activity.
Some suffixes are for research and education(.edu), government (.gov) and army (.mil)