Title: [security-feature] Fix-with (monospaced) font for sender email
1) What is your original issue/pain point you want to solve?
We got an email from Shopify Support <Mailer@shopfiy.com> which is a scam.
s h o p f i y (f and i is switched).
2) Which are one or two concrete situations where this problem hurts the most?
When somebody falls for the scam.
3) Why is it not solvable with the Zammad standard?
Cannot change the format in settings.
4) What is your expectation/what do you want to achieve?
I would like to see that a fixed-with font will be used to display the sender (or better all) email addresses.
This would show immediately that some special or switched chars are used to trick the reader.
Perhaps somebody has an additional or even better idea to make such scam obvious on the first look|view.
Thanks for your time!