SMTP fails silently

Activated sign-ups from the admin panel with authorized domains
Signed up with an email from an authorized domain.
Needs to confirm account via email but never received any. No error or messages in the logs regarding that.
Didn't tried without specifying authorized domains.
Email is a gmail account using google smtp server with tls enabled auth

Config:

```elixir
use Mix.Config

config :opencov, Opencov.Endpoint,
http: [port: 4000],
url: [scheme: "https", host: "REDACTED", port: 443],
secret_key_base: "REDACTED"

config :opencov, Opencov.Repo,
adapter: Ecto.Adapters.Postgres,
url: "postgres://postgres@REDACTED/postgres",
pool_size: 20

config :opencov, :email,
sender: "OpenCov ",
smtp: [
relay: "smtp.gmail.com",
username: "REDACTED",
password: "REDACTED",
port: 587,
ssl: false,
tls: :always,
auth: :always
]
```