Protonmail and Opus' internal mail client

Just out of interest, even though i rarely use the email module, how can we configure Opus to use Protonmail? I have tried to set the SMTP to 127.0.0.1, port 1025, but keep getting error messages. What would be the correct settings?

I’m not familiar with it. Does it run a local SMTP server?

No, i suppose there was no server running. However, i was able to solve the problem by installing a thing called Protonmail Bridge, and using their software generated login password in Opus' email settings. In other words, i can send my test emails through Opus now :slightly_smiling_face:. The bridge must have brought its own SMPT server, i guess, and i'm still having 127.0.0.1 configured in Opus. I also have ticked off the TSL/SSL box, for it's not needed, as it seems.