Does anyone know where I can send - receive a fax in Zurich ? I know that the post office used to offer this service but looking at the website, not sure.....

Try an online fax provider. There's many services which allow you to send and receive faxes without old fashioned paper getting involved. Alas I've never used one and can't therefore recommend one, but it's worth a google in case you have considered such an option. If anyone "faxes" you, you receive it via email.

If you have any luck, post the details in case anyone else is interested.

The post office still provides this service for sending and receiving.

HTH

There is an internet cafe' on Uraniastrasse that also offers fax services.

https://www.popfax.com/

if it is an on going task internet fax provider is the best solution because you can receive or send faxes from any where and at any time (no fax ringing during the night.

Sending should be possible from a PC with the software solutions mentioned.

Another option to receive would be by Mobile phone if your service provider offers this (I have this with Swisscom).

Go to post office and tell them that you need to send fax. They will give you a paper to fill up and you have to put the number that you're going to send it to.

The post office doesn't receive fax, but you can tell them if it is possible for you because it's very important and that you need it urgently because you don't have fax at home.

If you want to express it in German which is better, let me know if I can help