try to find a reliable service for e-mail to fax for instance; https://www.google.nl/search?q=email+to+fax&oq=email+to+fax
I do not have experiences with a fax since 2001 or so ;-)
Next to several examples of fax web services you could also take a look at services which enable you to send a fax by mail. You could use the email template module and easely use something like efax where the first 200 faxes a month are free(The statement comes with a * but can't find explanation for it, I guess it will turn out it's paid after all). Since you're based in The Netherlands(according to your profile) I guess it wouldn't be a problem that there website is Dutch.
Or you have myfax as well, which has an overall good review rating by users, they charge a minimum of €9 a month for 100 send faxes.
I have used such an option before, but can't remember which one it was anymore, like Pim for me it's a long time ago as well.