Same here! I was looking for this just now and was under the impression I could change the default font, size, and text colour in the "settings" tab (same as Outlook and Gmail), but my formatting turned out not to work for emails themselves, but solely for the "signature' (which I don't use). Couldn't find anything on the topic in the "Help" and consequently Googled for it: Tadaaaa... here I am!
So, a big fat "no" on the option of changing the default text settings I understand? oO
How perfectly bizarre and very(!) unexpected!
Proton, how could you do this to us??? I mean, needing the Hubble telescope to read incoming mail is one thing (> ctrl+), but I'm a lazy so-and-so and my patience is fragile (ie, a short fuse: Not healthy for my poor keyboard), so a simple feature that allows users to preset text appearance would be enormously appreciated.

Come on Eileen!

I'd also like this ability, though I also acknowledge I'm using a service for free and have no right to whine and complain about it.

Yes please - I would also like to be able to set up a diferent font size and font for my messages and then save them as my default setting. It's a real nuisance to have to increase the font size every time I write an email. I agree with other people that the font size is quite small and difficult to read. Thank you.

I am with the masses........WHEN & HOW do I change the text font to MY settings????
It is so small.....even my pet flea cannot read it.....and WHY arial......Time New Roman....please....

this is really frustrating

Need the email font size worked on. I need the ability to reset the font size to a larger one and keep it set rather than changing it with each email

Agree completely and it seems it should be an easy addition.

yes - great pity - it is unusable on an iPhone right now with the tiny font - will stop using it

I can see from the dates on the comments below that ProtonMail has done nothing to address the problem of minuscule fonts when printing. So I'm not even going to complain. I'm outta here, and will find another email provider.

It is too bad the user choice is completely overridden by the default setting. My computer has a small 10" screen and I need glasses to read. This combination makes Protonmail a bit painful for me to use, tho' it is my main email client. If you can, please allow me to choose the font setup I prefer.

Another user asking for the ability to change font type and size to a new default.

I stopped migrating my gmail from all my subscription and my CV the moment I found out there wasn't a way to adjust the horrible small font size. You guys need a/better designer!

Yeah the extremely inaccessible font size is a deal breaker for me.

At least please don't use Arial as the default font. Why would a Swiss company not use Helvetica?

Yes, please make it so I can set a default font and size. Good grief, that's pretty basic

As a plus user for several years, I think upgrading your system to offer users the ability to set permanent default fonts and text sizes would be a great improvement. Quite frankly I am amazed it was not built into the original design of both the basic and plus versions of this service. Please make it so!

You guys can't be Swiss. I own Omega and IWC Swiss watches. They are high quality and logically designed and built. Kindly get off your neutral Swiss asses and give me an adjustable font size if you expect me to pay.

Kindly stop giving the Swiss a bad reputation.

FOLKS - just "joined" the team ... as one with compromised vision - it is EXTREMELY DIFFICULT to read GREY and LIGHT FONTS .... I URGE you to consider allowing some way to enlarge or at least making the FONT BLACK not GREY .... and maybe even BOLD - thanks for any consideration you can give - Bill Moser

A default font and size would save SO much time. Surely it is a simple thing to implement technically?

Please make the protonmail app more accessible by making the font size adjustable.
The microscopic fonts are difficult to bear and reason for a change if the app stays like this.