Nicca is seeking help with not receiving the admin verification email after setting up a self-hosted Discourse forum, sharing their SMTP settings. ondrej welcomes them and suggests checking a troubleshooting guide. JammyDodger notes that Digital Ocean has blocked standard SMTP ports, recommending switching to port 2525 as a workaround. pfaffman also points to the official troubleshooting guide. Heliosurge points out that Nicca’s SMTP username appears to be the same as the notification email, which may be incorrect, and questions whether the password is an SMTP password or API key.
Welcome to Discourse Nicca 
Will this topic help at all?
Hello and welcome @Nicca 
Just to add, there’s been a spate of Mailgun [1] Digital Ocean blocking ports as some kind of anti-spam initiative or some such, so you may need to get in touch with them to unblock it if that’s the case.
Though I think changing the smtp port to 2525 could also work as an alternative - re: Email not working on my Discourse site - #10 by pfaffman
See Troubleshooting Outgoing Email
But switching to port 2525 is a good first step. Digital ocean is blocking outgoing smtp ports but default.
In your pic your SMTP USERNANE appears to be the same as notification email address.
Depending on your SMTP provider this is often your SMTP sign up email. At least it is on www.brevo.com
The password should be redacted. But is that the SMTP password or an API key?
