[onemandevteam]

Root cause of the issues: Trying to connect to an SMTP service to send OTP's that began to block me after "suspicious activity".

[onemandevteam]

Just switched to an actual transactional email service so it might actually work for a bit. (oops, still need to get verified to send more than 100...)

[albertgoeswoof]

I own https://mailpace.com - if you sign up and set up your DKIM records you can send right away. Drop a note to [e-mail] once you're up and we'll remove your rate limits.