I created DigitalOcean Droplet to have Rocket.Chat.
Everything is great until I install SMTP, It doesn’t seem to work, I tried Gmail SMTP, Sendgrid, Mailjet…
When i click send test smtp it says successfully sent (but i received no mail)
When I create a new account it says successfully sent (but not any mail to the mailbox)
==> What do I need to do to fix it