I agree to get a reasonable SMTP Api access for non Business customers.
For my case, I subscribed to Mail Plus Individual Plan to get a dedicated custom address and this fits my need for now. Going to Business plan is not the same in terms of usage and expenses !
Others organisations as Google Workspace or AWS SES got paid plan but are free for limited usage.
As @alex said, we are tight to Protonmail Bridge because specific of encryption logic. So I can't use other SMTP providers so I had to install Protonmail Bridge on my server to get this work programmatically. Then I have to allocate server ressources to run proton mail bridge, install the bridge explained here (official) https://proton.me/support/mail/bridge/installation-linux and here (install as a service) https://gist.github.com/pakokrew/55e8e1226b36eebb7ac9f2464f62844c, ensure the service is constantly up and running (no downtime) on my server, have to maintain the service up to date and in therms of security have to ensure the service is not accessible to public and only locally.
Theses reasons I would have preferred use the token based proposal by Proton but only available for Business.
This had 3 of my votes.
I agree to get a reasonable SMTP Api access for non Business customers.
For my case, I subscribed to Mail Plus Individual Plan to get a dedicated custom address and this fits my need for now. Going to Business plan is not the same in terms of usage and expenses !
Documentation can be found here : https://proton.me/support/smtp-submission
Others organisations as Google Workspace or AWS SES got paid plan but are free for limited usage.
As @alex said, we are tight to Protonmail Bridge because specific of encryption logic. So I can't use other SMTP providers so I had to install Protonmail Bridge on my server to get this work programmatically. Then I have to allocate server ressources to run proton mail bridge, install the bridge explained here (official) https://proton.me/support/mail/bridge/installation-linux and here (install as a service) https://gist.github.com/pakokrew/55e8e1226b36eebb7ac9f2464f62844c, ensure the service is constantly up and running (no downtime) on my server, have to maintain the service up to date and in therms of security have to ensure the service is not accessible to public and only locally.
Theses reasons I would have preferred use the token based proposal by Proton but only available for Business.