We are not trying to be proton. However, we are more looking to compete with mailbox.org, zoho, fastmail, etc. Which, I believe we are competitively priced across all offerings (you keep just quoting our most expensive offering). So, basically, what you are saying is that if we raise our top level from 5 gig to 10 or 15 at the same price that you’d see this as more competive? I’ll bring it up.
Edit: Also note that any alias with us, whether our own or private domains, can autopgp encrypt incoming mail with user choice of their own individual public key for that alias. Also, there is a filter action to pgp encrypt, which means any seive filter set up can also include autopgp encryption with user choice of public key. And of course, there is also an option to simply auto pgp encrypt all incoming mail with one key.
Even 5 GB is too low. 5 or even better 10 GB should be the bare minimum imho. Also, what is your target audiance? Only privacy seeking consumers or businesses too?
For example, I created my own email like 3-4 years ago and it already has 9 GB ish size, and that is for personal use. I won’t even say how big is my business mailbox.
Maybe not the same category but Microsoft 365 Business Basic could be your competitor too. 6 USD per month (72 USD per year). 50 GB mail space, 1 TB cloud space, all Office apps on the web, Calendar, Teams, and so on. It doesn’t have custom domains limit, but alias creation is better on your product. Privacy-wise it is not comparable to consumer version, totally has different policies regarding data protection and privacy.
Just individuals on codamail, although I think there are some small businesses using it. But usually, for businesses, we consult and set them up with their own dedicated service that fits their specific needs. As for space, there is a trade-off in offering so much unlimited, space constraints make it possible to have more. I get what you are saying, though, 5 gigs are probably too low for a top offering.
I did test the service out, I liked it, but they didn’t - when I tested them - support DKIM dns record which was a step back for me, else it was a lovely testing period.
One thing further I wish to be implemented is custom domain adding by customer, so contacting the support for that will not be necessary.