Christian,
> Of course this is tedious so I am looking to do some sort of customer
> lookup, either that this field is automatically generated by the email
> domain, or by using the integration.
>
> However, I have no current customer database so I have to
> build something
> myself but I don't want to spend too much time on it.
>
> So I would just like to check if someone has any quick and
> dirty way of
> setting up customer lookup?
>
Please have a look at our example customer integration code that ships
with Eventum. It uses a simple array of customers hardcoded into the
file to do these lookups, so maybe that's a good idea for you as well?
--Joao