We have just launched our app, it stands on Elixir 🚀 what do you think?

[derek-zhou]

@sbuttgereit

it’s possible that Microsoft is rejecting them more generally.

See this thread a few month ago for email delivery problems:

How do you send transactional emails?

Outlook.com blocked my transactional emails sent via sendgrid.com. From what I learned, outlook.com used a simple per IP reputation system. Since I am on a cheap shared IP plan of Sendgrid, and there must be someone sending dubious email with sendgrid, therefore, the situation is hopeless. Outlook.com also blocked IPs from major cheap hosting companies. The good thing is that if you file a complain with them and show them proof that you do own the IP, then they will unblock it on a case by case…